Wenn Sie Ihre Auswahl anpassen mchten, klicken Sie auf Datenschutzeinstellungen verwalten. 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. The safety of tattoo inks is also discussed along with how they can be affected by MRIs. Students will learn how a sample of someone's breath can contain compounds released from cancer cells, how sensitive dogs are to scents, how dogs are trained to detect cancer compounds in samples of patients' breath and what other things a dog's sense of smell can be used for. Get more great resources from Wicked Weather Watch here and on its website at wickedweatherwatch.org.uk. So-called "pizzly" bears were first spotted in the wild in 2006. On average, the bears are spending 30 more days on land now than they did in the 1990s. Image of the Day '33g;62.`| /Qs?A;Ol3RreAl>r{%,"i(V[&T-W5W.9E2(qP UZ. Discover world-changing science. Article #17 Breathing and Peeing in Space. The Pizzly Bear, identifiable by their off-white coat and elongated schnoz, were reportedly formed when melting sea ice forced the worlds largest land carnivore to migrate inland. Good news for the polar bear A polar bears life seems simple enough: eat seals, mate, and raise cubs. 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. In Alaska, this has led to. Grizzly bears and polar bears only diverged 500,000 to 600,000 years ago, so the two species can mate and produce viable offspring. Water Polar Bears Across the Arctic Face Shorter Sea Ice Season. Their paws can often be dark too or at least around the toes. Students will learn about extracting shale oil and gas through the process of fracking. First seen in the wild in 2006, this polar bear-grizzly hybrid is more resilient to climate change and better suited for warmer temperatures, according to paleontologist Larisa DeSantis of Tennessees Vanderbilt University. "But as there's less and less ice, they're spending more and more time on land. "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. Article #27 Lobotomies: Who Needs All that Brain? 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. Without these colors, the birds would not be aware that these butterflies contain cyanide, and the defense mechanism would be useless. Ronald Fishers "Fisherian runaway" hypothesis as well as other interesting evolutionary theories behind sexual selection are examined. An analogy is used for easy understanding. (Thanks Shala R.), "My kids loved this, thanks!" 0000007595 00000 n As temperatures continue to increase the world has just broken monthly heat records for 12 months in a row the long-term prognosis could be more favorable to the pizzly than the polar bear. 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. Climate Change Is Causing Polar Bears And Grizzly Bears To Mate, 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, Moreover, its also more adept at foraging for food that involves a varied diet, Researchers hint this could be occurring since with the sea ice thinning, more polar bears are making their journey towards the south, looking for food, whereas with temperatures in the south rising, more grizzly bears are moving towards the north, lookin, 11 Successful IITians Who Are Making India Proud, 11 Senior Actors Who Made Way Into Our Hearts And Proved Bollywood Needs Actors, Not Superstars, 9 Craziest Wildest Sexual Fantasies Ideas List with Examples (Girls & Boys). Explore our digital archive back to 1845, including articles by more than 150 Nobel Prize winners. Unfortunately, their highly specialized diet of blubber means they could soon go extinct a la the saber tooth tiger and other persnickety predators. Whats more astonishing is that scientists dont really know if this is a good thing. Article #38 Climate Change and Pizzly Bears. They have the ability to fast, but if they dont eat for longer periods, they get thinner. The bears are "more resilient to climate change and better-suited for warmer temperatures," paleontologist Larisa DeSantis. 0000018199 00000 n Snow and Ice. For polar bears, the sea ice is a crucial platform for life. Students will learn about fossil fuels, in particular: oil, natural gas and coal. Article #35 An Athlete's Perfect Twitch. Snow and Ice In the meantime, Laidre hopes this studys information will be used to further understand the impacts of sea ice loss on the species. Article highlights include: his poverty growing up; his only way to obtain an education was to become a monk which he did reluctantly; he failed twice at obtaining a certification for teaching but the monastery allowed him to teach despite this; the beginning of his studies into inheritance and heredity; the fortuitous choice of garden peas for his studies and the development of his Mendel's laws of inheritance. Students can type in their answers directly in the Google Slides. A great class discussion can ensue from this. So-called "pizzly" bears were first spotted in the wild in 2006. The bear was shot near the small community of Arviat, located on the Hudson Bay within Canadas Arctic region. "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.". This story has been shared 134,090 times. Also discussed is how this data supports the Out of Africa theory of human migration and expansion. However, some biologists disagree, saying that hybridization is natural and doesnt always produce negative results. 1. Students will learn about how fecal microbiota transplants help treat intestinal diseases like C. diff infections. Each article sub plan comes in two versions with full answer keys: 1) Easily printable PDFs, as well as 2) Google Slides. We should do what we can to be good stewards.. Male competition using the example of elephant seal bulls is also discussed. AEST = Australian Eastern Standard Time which is 10 hours ahead of GMT (Greenwich Mean Time), abc.net.au/news/grolar-pizzly-bears-climate-change-creating-hybrids/7428354, Help keep family & friends informed by sharing this article, These engineers break their silenceafterdecade of criticism over2011 Queensland flood handling, Tens of thousands of pigs and buffalo pegged for mass culls in Kakadu, in bid to curb feral animals, With Russian forces closing, Svyat rolled the dice in the last days before Bakhmut fell. It is the Flathead Basin, not the Shields Basin. New pill cuts cholesterol, heart, Biden expected to tighten rules on US investment, Scout Motors picks South Carolina for new $2B EV. If the father was a grizzly bear then the offspring is informally known as a grolar. TPT empowers educators to teach at their best. Related: How sounds are made for nature documentaries We know that sea ice, which is where the bears need to be, is decreasing very rapidly, said Kristin Laidre, an Arctic ecologist at the University of Washington. Why are black swans becoming stranded in the ocean off WA? Students will learn about stem cells and stem cell research. The satellite data are processed by NASA-funded scientists and stored at the National Snow and Ice Data Center. They will examine the composition of the gun powder which explodes to launch the firework into the air and examine the "stars" which are the metal salts that burn with various different colors when they are ignited within the firework. However, due to climate change, they're becoming a lot more common. Article #4 Dung Beetles: Where Did All the Poo Go? Students will learn about sexual selection and how female mate choice has strongly influenced the physical and behavioral traits that have evolved in males. 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. 0000011433 00000 n Additional licenses can be purchased at a discount for others to use in your department. Hybridization can increase genetic diversity in some cases, said Tallmon. ECOLOGY Articles Bundle - 8 Articles for 28% OFF. Students will learn about the challenges of supporting human life in a space craft. Remote Sensing The Pizzly Bear, identifiable by their off-white coat and elongated schnoz, were reportedly formed when melting sea ice forced the world's largest land carnivore to migrate inland. The Arctic sea ice cap is a large area of frozen seawater floating on top of the Arctic Ocean and its surrounding seas and straits. Are you getting the free resources, updates, and special offers we send out every week in our teacher newsletter? 0000018689 00000 n Write by: Climate change has forced polar bears and grizzly bears to mate and create large hybrids dubbed pizzly bears. The grizzly-polar bear hybrid has only been found a few times. Snow and Ice It's thought grizzlies and polar bears are struggling to cope with climate change but their hybrid is . Usually hybrids arent better suited to their environments than their parents, but there is a possibility that these hybrids might be able to forage for a broader range of food sources, DeSantis told Live Science. Pre-made digital activities. But closer analysis of genetics suggests that perception is far some settled. 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 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. Time spent in weightless conditions lead to serious bone loss and almost immediate and severe muscle atrophy. They projected that the normal cub litter size of two may decrease within the next three polar bear generations (37 years), mainly due to the projected decline of sea ice in the coming decades. They help my students with reading non-fiction, and they are so interesting and engaging!" Sightings of this hybrid species which has been dubbed either a grolar bear or a pizzly bear have become more common in recent years as the Arctic has warmed at twice the rate of the global average. 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. ARTICLE SUMMARY: In this particular article, students will learn about how climate change is warming the Arctic and threatening the habitat of the polar bear. For more in the world oftechnologyandscience, keep readingIndiatimes.com. Students will learn about vestigial structures and about several different examples of human vestigial structures. Using field observations and remote sensing, the study showed that polar bears are spending more time on land and are fasting for longer periods of time. 0000011502 00000 n With climate change pushing polar bears toward the brink, nature has devised a new animal to help preserve the species the Pizzly Bear. Combining the strengths of coyotes and wolves Grizzly bears found in Alaska and Canada appear to be moving north as their environment warms, bringing them into contact with polar bears located on the coastline. You can also follow on Twitter at @WickedWeather1. Hunter Didji Ishalook originally thought hed shot a small polar bear but he said it was a half-breed a position backed by several bear experts. Students can type in their answers directly in the Google Slides. Article #40 The Truth Behind Bottled Water. They will learn about what characterizes each stage and the major hormones involved in each stage. Article #12 Are Bed Bugs Keeping You Awake? 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. A mount of a so-called "pizzly," a polar bear-grizzly bear hybrid, first recorded in April 2006, serves as a . Snow and Ice. 0000008902 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. Also discussed is the reason why women, in general, are less pigmented then men. Students will learn about the limits of cell division and how cancer cells circumvent these limits. This question can be a good springboard for further exploration of how scientists study and report evidence of climate change. 2019 Arctic Sea Ice Minimum Is Second Lowest. HTn0}Wpo6E6]{V{D/e7~NX$ER< Article #11 The Making of Human Hermaphrodites. By Adam Pockross. 0000057567 00000 n Polar bears are often considered the poster-child species for climate change impacts. 4 0 obj <> endobj xref A coyote-wolf-dog hybrid that made its way to western New York in the 1940s has the combined features of stealthy coyote-like movements and a larger skull, making it better-adapted to hunting white-tailed deer. 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 #4 Dung Beetles: Where Did All the Poo Go? Article highlights include: Carson's duel passions for writing and nature as a child; her academic achievements; taking a job with the U.S. Bureau of Fisheries to help support her family; her budding and acclaimed career as a writer; her concern for the widespread use of DDT and other pesticides; her need to make the public aware of the dangers of pesticides by writing a groundbreaking book called Silent Spring; her battle with intestinal and breast cancer during the four years it took to complete the book and how Silent Spring inspired a new young generation of environmental activists. So-called pizzly bears were first spotted in the wild in 2006. A polar bear at a Berlin zoo in 2016. They will also learn about why dung beetles are important to ecosystems. They will also learn about a planet in our Milky Way galaxy made up of at least one third diamond. 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. U2:CB1M/k$1[H#zkng\J5Zpis 52E^\(4aWX.k5YzW/)eRA)2-(K{DWjQE;NW. Climate change is going to impact us sooner than we think. But some scientists say the two bear species are breeding more often because climate change is causing them to cross paths. The results of the study were not necessarily surprising for Laidre, who has been studying the changes in the Arctic ecosystem for the past 20 years. A bear shot in the frigid expanse of northern Canada is believed to be a grizzly-polar bear hybrid, a consequence of the increasing interactions between the two imposing bear species. No help from Endangered Species Act NASA Earth Observatory images by Joshua Stevens, using data courtesy of Kristin Laidre and Harry Stern at the University of Washington, and sea ice data from the National Snow & Ice Data Center (NSIDC). These hybrids, sometimes called pizzly bears or grolar bears, have been spotted in the wild as far. 0000036276 00000 n and 9 more scientists. which I cannot fully describe due to reaching the text limit in this description space. 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. The first one of its kind was spotted in 2006 and at the time it was considered to be a rare occurrence. These and the other fascinating negative effects of space living are discussed. 0000002556 00000 n Students will learn about black holes and how they are related to the space-time continuum and gravity. Here's Why You Shouldn't Miss It! This resource includes a 5-page factsheet on Greta and her role in . SCIENCE Articles Vol. A great article for discussing ecological and environmental issues. Water A new study, published in the Proceedings of the National Academy of Sciences found that climate change's effect on the bear species' habitats has also affected the animals' mating behaviors.. What we want to do is weve got to stop destroying landscape.. Article #40 The Truth Behind Bottled Water, Article #10 Great Minds in Science - Rachel Carson. 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. 0000035729 00000 n They hunt for seals by finding their dens or sitting next to gaps in the ice, waiting for the unsuspecting prey to pop up. Considering that human activity has indirectly brought together species through planetary warming and increased fossil fuel emissions, the question on the minds of many biologists like Arnold is whether humans should play a role in preventing hybridization like this. Thanks for reading Scientific American. 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. 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. Skip to main content Open menu Close menu Cub litter size was also affected by the body condition of the mothers and by sea-ice availability. GREAT MINDS IN SCIENCE ARTICLES (All can be found in the Bundle of 18 Articles): Article highlights include: his mother's tenacity which allowed him to attend university where he faced various obstacles to rise to the top of his class; his concerns for the development of science education in Russia which compels him to write Russian language textbooks; his certainty that science can be standardized by understanding a pattern that exists among elements; his journey to decipher this pattern; his development of the periodic table and having element 101 (Mendelevium) named after him. 0000017861 00000 n Students will learn about mitochondrial DNA and Mitochondrial Eve. Engaging science articles are a good way to meet these needs. Scientists think that the simple explanation for these Grolar and Pizzly Bears is climate change. warmed at twice the rate of the global average. docs, slides, etc.). These new animals, which carry the genes of polar bears, have been named "pizzly bears". Knowledge awaits. 0000002414 00000 n Some interesting studies are also discussed which examine how lowering certain hormones affect libido and attachment. Remote Sensing Students will learn about why athletes blood dope, the performance enhancement effects of blood doping, blood doping techniques like drugs that stimulate red blood cell production and blood transfusions that increase red blood cell counts immediately. Climate change is known for swelling the oceans and fueling extreme weather, but it may be also causing the curious emergence of a new type of bear in the Arctic. "And then the claws are often longer than polar bear claws because grizzly bears have much longer claws, and in general the fur is a little bit darker than a polar bear.". Nawazuddin Siddiqui Claims His Wife Is Lying About Being Stranded, Woman Discovers 100-Years-Old Cadbury's Dairy Milk Under Her Bathroom Floorboards, Great Design, Quality Product & More, OnePlus 11R 5G Ticks All The Boxes For A Value Flagship Smartphone & We Are Sold, Is Introducing A Sex Toy To Your Love Life A Good Idea? Evolutionary science demonstrates that Polar and Grizzly Bears are very closely related, mainly separated by color and location, though still considered separate species [4]. 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. Only animals that were already generalized or able to adapt survived, lamented DeSantis. They will also learn about who is most at risk for this condition and they will be given examples of people who have suffered from hyponatremia. Mr Servheen is among a group of scientists who believe climate change is causing the polar and grizzly bears to come into contact more often.

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