Article #25 The Science and Evolution of Human Skin Color. Students will learn about alloys, how they are made, how steel and stainless steel are made and about Nitinol, the amazing superelastic alloy that makes up Ironman's suit. (3) Independent work for early finishers. 0000009711 00000 n hb``Pg``(p014$Qu(f`d[+.3e,p``: $"~'mnj`tP$\[ endstream endobj 5 0 obj <>>> endobj 6 0 obj >/PageWidthList<0 612.0>>>>>>/Resources<>/Font<>/ProcSet[/PDF/Text]>>/Rotate 0/TrimBox[0.0 0.0 612.0 792.0]/Type/Page>> endobj 7 0 obj <> endobj 8 0 obj <> endobj 9 0 obj <> endobj 10 0 obj <>stream Students will learn about fossil fuels, in particular: oil, natural gas and coal. Lastly, they will read about the exciting advances in stem cell research opened up by the advent of IPSCs (induced pluripotent stem cells) which helps bypass many of the ethical issues in stem cell research. We interviewed our tech expert, Jaime Vazquez, to learn more about accessible smart home devices. This is an archived article and the information in the article may be outdated. Reported first by Thred, according to researchers, rising global temperatures has forced the two species to congregate together and this frequency has now risen considerably, resulting in more interbreeding. 0000010543 00000 n Image of the Day 0000035460 00000 n They will read about the difference between embryonic stem cells and adult stem cells as well as understand the controversy over stem cell research. Polar bears are the largest bear species and are supremely adapted to their Arctic habitat, whether they are prowling the ice or swimming in the sea. The original version of the story misstated the name of the Montana basin. Each article sub plan comes in two versions with full answer keys: 1) Easily printable PDFs, as well as 2) Google Slides. Students will learn the differences between REM and nonREM sleep, how much sleep is needed for individuals, why sleep is important, what happens when someone experiences sleep deprivation and insomnia and how other mammals exhibit different sleep patterns and habits when compared to us. With global warming and sea-ice declines, it becomes harder for polar bears to hunt their preferred preyseals. (2) In school suspension plans that are handy for those unexpected times. The pizzly bear is the result of polar. 2019 Arctic Sea Ice Minimum Is Second Lowest, NASA Goddard Space Scientists think that the simple explanation for these Grolar and Pizzly Bears is climate change. The maps above show the difference in sea ice extent around Baffin Bay on July 15, 1993 and July 15, 2013. 0000008401 00000 n Climate change is bringing bear species that have mostly lived apart into mating proximity: The polar bear population in Canada's western Hudson Bay region is falling, partly due to the declining ice. Polar bears are spending more time on land as Arctic ice diminishes, causing them to lose body weight and decline in numbers as they are unable to hunt for favored prey such as seals. Male competition using the example of elephant seal bulls is also discussed. But the rate at which species interbreed is accelerating because of climate change, researchers say. Results showed the bears body condition was linked with sea ice availability in the current and previous year. (MAURIZIO GAMBARINI/DPA/AFP via Getty Images). '33g;62.`| /Qs?A;Ol3RreAl>r{%,"i(V[&T-W5W.9E2(qP UZ. Water Arctic regions have warmed twice as fast as the rest of the world, so seasonal sea ice is also forming later in the fall and breaking up earlier in the spring. Continue reading with a Scientific American subscription. The Prius isnt the only environmentally conscious hybrid out there. 0000017861 00000 n As this happens, it makes way for grizzly bear territory to expand further north which increases the interaction between the two species, with possible mating opportunities. Image of the Day Students will learn about the Zika virus, where it first came from, where it's spreading to, how it is transmitted, and the symptoms it produces. Students will learn about how climate change is warming the Arctic and threatening the habitat of the polar bear. Pizzly bears, sometimes called grolar bears, are a bear hybrid that could become more common in the Arctic as a result of the climate crisis. Article #7 Body Fat: The Good, The Bad and the Ugly Truth. Animals have been interbreeding for millennia. It was easy to prepare and I had a very successful class using this lesson. Students will learn about the three scientifically recognized components of love: sex drive (libido), attraction and attachment. Terms of Use: This document is for personal use only and may only be used by the original purchaser. Though crossbreeding between Amazonian butterflies was not triggered by climate change, it is an example of hybridization that strengthens the survival abilities of a species. Students will learn about the science behind the feeling of spiciness, what chemical compound creates this sensation, the way spiciness is measured, why the desire to eat spicy foods evolved and how to cure the pain of overly spicy food. Article #43 Living in Space Harms Your Body. Facebook addiction is also discussed along with a the Bergen Facebook Addiction Scale. Water It is not looking good for polar bears, said DeSantis, who blames the arctic beasts decline on the melting sea ice where they hunt seals their preferred prey. Article #35 An Athlete's Perfect Twitch. As well they will learn about the effects of high altitude training on red blood cell production (which is a legal method of increasing red blood cell count) and about the World Anti-Drug Doping Agency's use of athlete biological passports to detect cheating. With sea ice thinning, the endangered, starving polar bears are being driven . Students can type in their answers directly in the Google Slides. Beyond speculation, two real cases of pizzly bear offspring in the wild (as confirmed by genetic testing) is discussed along with the possibility of other Arctic hybrids. Related: How sounds are made for nature documentaries Each article spans two pages in total with 1 and 1/3. ECOLOGY Articles Bundle - 8 Articles for 28% OFF. They found that most bears follow the seasonal growth and recession of sea ice to end up on Baffin Island in the fall, when sea ice is usually at its lowest extent. THIS PRODUCT IS ALSO FOUND IN THESE DISCOUNTED BUNDLES: SCIENCE Articles MEGA Bundle - 52 Articles for 44% OFF. Flight Center, NASA Earth Observatory (2019, September 24). Article highlights include: her brilliance at scientific studies as a child; her inability to continue her studies in Poland because universities there didn't accept women; her struggles to make money so that she could attend university in France at the age of 24; her love of Pierre Curie and their work together on radioactivity; her discovery of polonium and radium; her two Nobel Prizes; her significant but largely unrecognized contributions to the war effort in WWI and her death from aplastic anemia due to radiation exposure. (Thanks Shala R.), "My kids loved this, thanks!" Hybridization can increase genetic diversity in some cases, said Tallmon. Cold case: Who murdered this man on Lookout Mountain? 0000011433 00000 n The two species are very similar genetically so males of both species will be attracted to females, which is why we are seeing a mix-up in the breeding.. The recent photo of what many suspect to be one of the hybrid bears was posted on Facebook by hunter Didji Ishalook, who shot it when it was sighted near his home community of Arviat. On average, the bears are spending 30 more days on land now than they did in the 1990s. We should do what we can to be good stewards.. The other example is the dramatic change in the size of the giant insects of the prehistoric era to the much smaller ones we have today. 4 Bundle - 10 Articles, Article #10 Great Minds in Science - Rachel Carson, (All can be found in the Bundle of 18 Articles). The hybrids retain features from both the species -- pizzlys are short-furred bears that are more capable of dealing with warmer temperatures compared to a grizzly. Thats important because when the bears are on land, they do not hunt seals, said Laidre. Climate change could mean the end for polar bears who rely on sea ice Experts found that the animals have not adapted to warming periods in the past They say polar bears have stuck with. Get more great resources from Wicked Weather Watch here and on its website at wickedweatherwatch.org.uk. A great class discussion can ensue from this. "But they seem to be more common now," he said. 5 min read A hybrid polar-grizzly bear, known as a 'grolar' or 'pizzly' bear (Getty) Back in 2006, a strange polar bear was seen in the Northwest Territories of. Students will learn about morbid obesity and the two main types of bariatric procedures (restrictive methods and malabsorptive methods) that are used to treat this condition. Were All in for Arena Reel Star. Polar bears evolved from brown bears around 150,000 years ago and are now the largest land carnivores in the world, weighing up to 1,600lb (720kg). Heres How To Choose, Where To Buy & More. Pay only $1.99 for this article when you purchase it in the 52 Science Reading Articles MEGA Bundle - Saving you over 44%. Students will learn about mitochondrial DNA and Mitochondrial Eve. Without these colors, the birds would not be aware that these butterflies contain cyanide, and the defense mechanism would be useless. 0000025483 00000 n They will find out what type of reproductive advantages this gives the fish and what conditions trigger sex changes. They will learn about the difficulties people with CIPA face because they cannot feel pain, the different types of nociceptors (pain neurons) that exist in humans, how mutations in a gene destroys nociceptors in people with CIPA, the concerns parents need to have if their child has CIPA and how CIPA is genetically inherited. But some scientists say the two bear species are breeding more often because climate change is causing them to cross paths. Add highlights, virtual manipulatives, and more. Climate-induced changes in the Arctic are affecting polar bears, said Laidre, who was the main author of the study. and the need to publish his findings because Alfred Russel Wallace began coming up with the same theory of evolution by natural selection. Students will learn about how maggot debridement therapy (MDT) is used to heal wounds and stave off infection, why the common green bottle fly larva is the maggot of choice, what type of wounds are best suited to MDT and the rise, fall and re-emergence of MDT as a popular medical treatment. Students will learn about the differences in the three types of tears humans produce, the composition of these tears and their different purposes. Students will learn about the L. paradoxum parasite that infects snails. They will also read about how the immune system aids the laser tattoo removal procedure to help get rid of tattoo ink. 0000007595 00000 n This entire document, or any parts within, may not be reproduced or displayed for public viewing. Students will learn about the mental and physical effects of caffeine on the body, how caffeine acts on the brain to increase neuronal activity which causes alertness, how caffeine triggers the fight or flight reflex and how tolerance and addiction occur with regular caffeine intake. Article #42 The Evolution of Pretty Boys. Quizzes with auto-grading, and real-time student data. Students will learn about lobotomies, why they were used, how they were performed, the people who helped develop the procedure (Antnio Egas Moniz, and Walter Freeman), the effect lobotomies had on patients and why the technique is no longer widely used to treat mental illnesses. A 2017 study in the journal Arctic indicated that eight hybrids had been born of a mother polar bear who mated with two grizzlies. Students can type in their answers directly in the Google Slides.These EIGHT ECOLOGY ARTICLES with questions provide a re, Updated to Include a Distance Learning Option. But as waters in the region warm, rainbow trout have swum up from the western lakes where they were introduced decades ago to cutthroat native grounds. Students will learn about the health impacts of sugar, research showing that sugar can be more addictive than cocaine or heroine, the effect of sugar on the brain, how available sugar was to our ancestors, the effects of high-fructose corn syrup, an example of how hidden added sugars can be found in "healthy" meals and how to read food labels appropriately so that the sugar content can be better understood. 1. We didnt see it much in the past but we are now. 0000006824 00000 n In the meantime, Laidre hopes this studys information will be used to further understand the impacts of sea ice loss on the species. The students were asking many questions after reading. Horizontal drilling and the chemicals used in the fracking process are explained. The bear, found at the southern tip of Banks Island in Canada's Northwest Territories, didn't look like a typical polar bear. Some interesting studies are also discussed which examine how lowering certain hormones affect libido and attachment. trailer <<666F399830224B2BB149A86CEFE15FDC>]/Prev 74072>> startxref 0 %%EOF 45 0 obj <>stream But closer analysis of genetics suggests that perception is far some settled. 0000044163 00000 n However, due to climate change, they're becoming a lot more common. Students will learn about the different types of fat in the body, their functions and the issues that can arise when fat content in the body becomes imbalanced. The issue is how fast we are driving species to extinction, said Pimm. 2023 NYP Holdings, Inc. All Rights Reserved, With climate change pushing polar bears toward the brink, My low confidence in medias climate change propagandists, World Bank elites put climate policy over developing nations prosperity and security, Higher energy bills coming, thanks to Gov. Pizzly bears, sometimes called grolar bears, are a bear hybrid that could become more common in the Arctic as a result of the climate crisis. But some scientists say the two bear species are breeding more often because climate change is causing them to cross paths. Then finally, the team used mathematical models to forecast future reproductive success. The team tracked polar bear movements across the bay over the past two decades. In fact, Pizzly Bears have been sighted as far south as Idaho. Hybrids are not classified as their own species, so there are no regulations to protect themthey cant be placed on the U.S. governments endangered species list. "The result is you have polar bears spending more time on land and grizzly bears spending more time where polar bears might be, and so the result is that we're seeing these occasional hybrids between two species.". This means it couldn't survive in colder temperatures. Students will learn about bactericidal vs. bacteriostatic antibiotics, narrow vs. broad spectrum antibiotics, what antibiotics are effective in treating, how penicillin was discovered by Alexander Fleming and how the misuse, overprescription and use of subtherapeutic antibiotics in livestock feed has contributed to the growing antibiotic resistance seen in bacteria. Its a major cause of species extinctionlots of species are now disappearing because they are being genetically swamped by other, commoner ones, said Stuart Pimm, a professor of conservation ecology at Duke University. However, some biologists disagree, saying that hybridization is natural and doesnt always produce negative results. They will learn about what characterizes each stage and the major hormones involved in each stage. You can also follow on Twitter at @WickedWeather1. Klicken Sie auf Alle ablehnen, wenn Sie nicht mchten, dass wir und unsere Partner Cookies und personenbezogene Daten fr diese zustzlichen Zwecke verwenden. "Grizzly bears can be dangerous, but most of the time they stay away from people but the behavioural characteristics of these hybrids, we don't know anything about it and I suspect that's something that we won't know anything about for a long time.". The climate crisis is increasing the numbers of 'pizzly' bears across the Arctic, according to researchers at the University of Buffalo. and 9 more scientists. which I cannot fully describe due to reaching the text limit in this description space. They will also learn about a planet in our Milky Way galaxy made up of at least one third diamond. TEACHERS WHO HAVE USED THIS PRODUCT HAVE SAID: "Love your articles! 0000002556 00000 n "And also what's happening is that grizzly bears seem to be moving further north, we're seeing their range extend further north toward the coast of the Arctic both in Alaska and in Canada. This can affect their overall health and reproductive success.. A Trending Reel Challenge That Can Win Us a Brand-New Swift? The focus will be on the technologies that are used to constantly supply the crew with oxygen and that help get rid of liquid and solid waste in a microgravity environment. This means that they are being filled with large quantities of environmental poisons, and that forms a threat to the polar bear's existence. Arterra The first one of its kind was spotted in 2006 and at the time it was considered to be a rare occurrence. Please click on the preview and zoom in to read an excerpt of the first page of the article to see if the content and reading level is appropriate for your students. The bears are "more resilient to climate change and better-suited for warmer temperatures," paleontologist Larisa DeSantis . Engaging science articles are a good way to meet these needs. Sea ice concentrations have declined by 13 percent each decade since 1979 due to increasing global temperatures. We dont know yet, but perhaps the intermediate skull of the pizzly could confer a biomechanical advantage.. 0000011599 00000 n Heat We Say, Yes! Interrelated ecological impacts of climate change on an apex predator. Grizzly bears and polar bears only diverged 500,000 to 600,000 years ago, so the two species can mate and produce viable offspring. 0000026158 00000 n Students will learn about the pigment melanin, its function and how the skin produces and distributes this substance to produce different levels of skin pigmentation. 0000044917 00000 n 0000006024 00000 n As Live Science notes, The rise of the pizzlies coincides with polar bears decline. They noted that the number of polar bears in the wild are expected to decrease 30% over the next 3 decades. Article #11 The Making of Human Hermaphrodites. Climate change has forced polar bears and grizzly bears to mate and create large hybrids dubbed pizzly bears. Combining the strengths of coyotes and wolves Remote Sensing The results were published on Monday in Proceedings of the National Academy of Science. On average, the bears needed nearly 12,325 kilocalories per day 1.6 times more energy than previously thought. One example is the change in color of the peppered moth from its light colored form to its dark colored form. 0000002964 00000 n Thanks for reading Scientific American. Students will learn about vestigial structures and about several different examples of human vestigial structures. Artificial selection is also discussed in contrast to natural selection. Students will learn about the downsides of living in space. This service may include material from Agence France-Presse (AFP), APTN, Reuters, AAP, CNN and the BBC World Service which is copyright and cannot be reproduced. For more in the world oftechnologyandscience, keep readingIndiatimes.com. It is the Flathead Basin, not the Shields Basin. So-called "pizzly" bears were first spotted in the wild in 2006. Here's Why You Shouldn't Miss It! What is clear is that warming is increasing many opportunities for gene mixing. This gruesome tale will enthrall your students and teach them about animal adaptations and parasitism at the same time. Their paws can often be dark too or at least around the toes. Regardless of its pros and cons, the truth remains that the change in climate due to human intervention is affecting the lives of the flora and fauna in a paradigm-shifting way. Montanas Flathead Basin has long been a spawning haven for the westslope cutthroat trout. Discover world-changing science. So-called "pizzly" bears were first spotted in the wild in 2006. 0000005195 00000 n Sea and Lake Ice, Image of the Day How this young Indigenous artist is taking inspiration from anime and manga to celebrate his own culture. Snow and Ice Warmer temperatures have allowed grizzly bears and polar bears to venture to habitats they dont usually occupy and mate to form a hybrid: the pizzly or grolar bear. But when the father is a polar bear, the baby bear is instead called a pizzly. Article #17 Breathing and Peeing in Space. So-called pizzly bears were first spotted in the wild in 2006. (Thanks Lisa A. Reported resources will be reviewed by our team. ANCHORAGE, Alaska Some polar bears in the Arctic are shedding pounds during the time they should be beefing up, a new study shows. Students will learn how pollination occurs, how the honeybee is specialized to collect pollen, why the honeybee is used by beekeepers over other pollinators and how critical bees are for global food production. The grizzly-polar bear hybrid has only been found a few times. Article #41 Natural Selection Explained. However, due to climate change, they're becoming a lot more common. The last part of the article turns to the idea of using human cyborgs in the military and can lead into a class discussion about the bioethics of this and other cybernetic applications. In 2006 a bear shot by hunters in the Arctic was tested and confirmed as a polar-grizzly hybrid. Side effects of anabolic steroid use is also discussed. We acknowledge Aboriginal and Torres Strait Islander peoples as the First Australians and Traditional Custodians of the lands where we live, learn, and work. A recent study published in the Proceedings of the National Academy of Sciences found that climate change affects the bear species' habitats and mating behaviors. Get the Android Weather app from Google Play, Bankman-Fried might use flip phone under stricter, Armored combat team heading to league World Cup, Motorcyclist killed on I-70 in multi-vehicle crash, Avs fall to Stars 7-3 for 2nd loss in a row, Jokics triple-double lifts Nuggets over Grizzlies, Makar cleared to return from 2nd concussion protocol, Mercer has goal, 3 assists as Devils beat Avalanche, Racism case against Broncos, NFL going to court, Chucky doll in a dogs body: Chihuahua that went viral finds forever home, Best athletic wear for kids joining baseball and, How to watch all the Oscar-nominated movies in style, Best smart home devices for older users, according, In Britain, warm hubs emerge to beat soaring energy, Cant take statins? 0000070665 00000 n The model took into account the relationship between sea-ice availability and the bears body fat and variable litter sizes. Get Ready India: John Legend & Raja Kumari Set To Perform At A Limited Seating Walkers & Co. Tour. Article highlights include: Franklin's achievements as a child; her research into the structure of coal which earned her a PhD; her apprenticeship for learning about X-ray diffraction; her appointment to work at King's College to help discover the structure of DNA; the tensions and hostilities with her research partner Maurice Wilkins; her success at obtaining excellent X-ray diffraction images of two forms of DNA; Wilkin's release of these images to a rival team (James Watson and Francis Crick) of researchers without telling Franklin; Franklin's research into the structure of plant viruses; Franklin's early death due to ovarian cancer at the age of 37 and the controversy over her not being acknowledged by the Nobel Prize committee. Article #27 Lobotomies: Who Needs All that Brain? The ice cap tied for the sixth lowest extent on record, continuing a long-term decline. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Copyright 2023 Nexstar Media Inc. All rights reserved. They hunt for seals by finding their dens or sitting next to gaps in the ice, waiting for the unsuspecting prey to pop up. 0000011209 00000 n Updated to Include Distance Learning Options. Polar bears are a harbinger for the future, said Laidre. These science articles / sub plans come in two versions with full answer keys: 1) Easily printable PDFs, as well as 2) Google Slides. In a new study published in Ecological Applications, Laidre and her colleagues described how declining sea ice concentrations are affecting the behavior, health, and reproductive success of polar bears. Judges choose winners based on how closely a dog fits a standard, or ideal breed. Standards are based on both personality traits and physical onesfrom eye color to ear shape and even tail placement. HT0}D BZ[EmUbXk;M)o\ The graph below shows the onshore arrival and departure of polar bears on Baffin Island relative to dates of sea ice advance and retreat. Article #26 Tanning, UV Radiation and Skin Cancer. Students will learn about how some fish are able to change sex from male to female or from female to male. "We're having massive impacts with climate change on loads of species right now," DeSantis said. Students will read about how mitochondrial DNA has helped geneticists discover Mitochondrial Eve, about the research behind her discovery and about the implications of this research on the evolutionary origins of humans. Kade was a fit 31-year-old when he died from a heart attack, 'Please confirm what Muslim refers to': Why Ali's birthday payment for his nephew was flagged by his bank, Protests break out in Iran as more schoolgirls hospitalised after suspected poisoning, Anna called police to report an assault, but it backfired and she lost her home, Sherpa are world famous for their work, which is synonymous with their name. They will discover that PET (polyethylene terephthalate) is the most common type of plastic beverage container and will read about PET's properties, how it is it is recycled (and down-cycled) and how it eventually makes its way into our landfills and oceans. They use the ice to travel long distances to new areas. July 12, 2022 Climate change is altering the environment of North American polar bears, forcing them south, where they're coming into contact with a different type of bear.
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