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. Additional licenses can be purchased at a discount for others to use in your department. 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. Each article sub plan comes in two versions with full answer keys: 1) Easily printable PDFs, as well as 2) Google Slides. (Thanks D'Niessa S.). 0000000016 00000 n Get more great resources from Wicked Weather Watch here and on its website at wickedweatherwatch.org.uk. 0000008401 00000 n "As you know, as the climate warms there is less and less sea ice in the Arctic," he said. A great article for discussing ecological and environmental issues. 0000025750 00000 n 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. 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. Article #18 Is it Ironman? 0000002556 00000 n "But as there's less and less ice, they're spending more and more time on land. 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 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. This science article / sub plan comes in two versions with full answer keys: 1) Easily printable PDFs, as well as 2) Google Slides. Polar bears, on the verge of extinction due to climate change, are frequently moving inland in search of food and mating with grizzly bears to create a hybrid animal that is more resilient to the warming world. In cases where warmer temperatures are bringing species together, human intervention should be carefully thought through, he added. (6) Warm up work for the beginning of class. 4 Bundle - 10 Articles, Article #10 Great Minds in Science - Rachel Carson, (All can be found in the Bundle of 18 Articles). In some cases, hybridization can lead to reduced genetic diversity in animals, according to David Tallmon, an associate professor of biology at the University of Alaska. They will learn about what characterizes each stage and the major hormones involved in each stage. This is a great article to use around Valentine's Day if you don't need to use it for a sub plan. Students will learn about beg bugs, their physical and behavioral characteristics, how they reproduce, their effects on human hosts, why cases of infestation in developed countries has risen in the last few decades and what methods do and don't work in attempts to eradicate them. Climate Change and FDR. 0000018689 00000 n Continue reading with a Scientific American subscription. . It is the Flathead Basin, not the Shields Basin. Scientists believe the pizzly arose when polar . Knowledge awaits. Thanks for reading Scientific American. 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. Hochul, Canadian super pigs poised to wreak environmental havoc, spread disease in US: expert, Myanmar activists remember dead with red paint protests, Canadian teacher with size-Z prosthetic breasts placed on paid leave, Buster Murdaugh got 'very drunk' with dad 2 months after mom, brother murdered: source, I'm a professional cleaner ditch these 4 household products immediately, Tom Sandoval speaks out on Raquel Leviss affair: I deserve your anger, Shoeless Ariana Madix awkwardly tries to avoid cheating Tom Sandoval, Prince Harry was scared to lose Meghan Markle after fight that led to therapy, Memphis Grizzlies star Ja Morant allegedly flashes gun at a strip club, Tom Sandoval, Raquel Leviss planned to tell Ariana Madix about affair. Add highlights, virtual manipulatives, and more. 0000009711 00000 n Some interesting studies are also discussed which examine how lowering certain hormones affect libido and attachment. In the case of cutthroat-rainbow trout hybrids, the hybrids are less genetically fit, with offspring of the hybrids struggling to survive, astudyled by researchers from the U.S. Geological Survey found. It also leads to cardiac muscle weakening as well as damages the optic nerves. 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. Klicken Sie auf Alle ablehnen, wenn Sie nicht mchten, dass wir und unsere Partner Cookies und personenbezogene Daten fr diese zustzlichen Zwecke verwenden. Science Sub Plans - 52 Articles MEGA BUNDLE | Printable & Distance Learning, Ecology Articles - 8 Sub Plans BUNDLE | Printable & Distance Learning Options, Science Sub Plans Articles - Vol. 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. Article #3 Beyond the Appendix: Vestigial Structures. Conventional drilling versus fracking is compared. February 27, 2023 new bill passed in nj for inmates 2022 No Comments . Article #6 Hyponatremia: Death by Water Intoxication. trailer <<666F399830224B2BB149A86CEFE15FDC>]/Prev 74072>> startxref 0 %%EOF 45 0 obj <>stream "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. Sometimes, pregnant females dig in the sea ice to create maternity dens, where they give birth and take care of their cubs. The bears are "more resilient to climate change and better-suited for warmer temperatures," paleontologist Larisa DeSantis . They will also learn about albinism and about how changing environmental conditions and determine the level of skin pigmentation in evolving populations. Students will learn about the differences between a bionic implant and a cybernetic implant and how the two function differently and can achieve different results. This issue is horrendously complex because of our ability to change the environment, said Arnold. Sie knnen Ihre Einstellungen jederzeit ndern, indem Sie auf unseren Websites und Apps auf den Link Datenschutz-Dashboard klicken. Horizontal drilling and the chemicals used in the fracking process are explained. This resource is very versatile and can be used for a variety of assignments like the following: (1) No prep sub plans that are easy to hand out and collect. Pay only $1.99 for this article when you purchase it in the 52 Science Reading Articles MEGA Bundle - Saving you over 44%. 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. 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 about why tanning has become popular, the differences between UVA and UVB and how both cause a different type of tanning response in the skin and health consequences of each, and finally, students will learn about skin cancer with a focus on melanoma and risk factors for developing skin cancer. Article #27 Lobotomies: Who Needs All that Brain? 0000001343 00000 n 0000011599 00000 n 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. Water Nor is its diet as versatile as a. Call it the "grolar bear" dilemma: Are hybrids caused by climate change bad for species? Article #43 Living in Space Harms Your Body. Students will learn about stem cells and stem cell research. 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. 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. And, their versatile brown brethren, whose range extends from Alaska down to Southern Wyoming, are better suited to the changing terrain caused by climate change. climate change) and a movement to "Keep it in the ground". The results were published on Monday in Proceedings of the National Academy of Science. Ronald Fishers "Fisherian runaway" hypothesis as well as other interesting evolutionary theories behind sexual selection are examined. 0000011209 00000 n 0000006824 00000 n Artificial selection is also discussed in contrast to natural selection. Hybridization can increase genetic diversity in some cases, said Tallmon. We interviewed our tech expert, Jaime Vazquez, to learn more about accessible smart home devices. (Thanks Lisa A. correct answer and is guessing based on words that are used in the text. 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, looking for colder climates. They help my students with reading non-fiction, and they are so interesting and engaging!" She says it is well known that changes in the climate are having a negative effect on polar bears. 0000044917 00000 n '(0fi>P 2p51v&!1A/4,Mz{m1Mv-?VwH[;]n/;~Svg/O.>alkF:ic2u^jGnwe$i;RsaY`?K\C9d*,S:gj;%=&>` E endstream endobj 11 0 obj <>stream Article #36 The Curious Case of Caffeine. She found that while effective for hunting seals, these noggins elongated structure mightve prevented the predators from switching to new diets amid climate change. ECOLOGY Articles Bundle - 8 Articles for 28% OFF. 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. 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. Image of the Day Life This story has been shared 134,090 times. Article #34 Hello Gastric Bypass, Goodbye Stomach. 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. We dont know yet, but perhaps the intermediate skull of the pizzly could confer a biomechanical advantage.. The first one of its kind was spotted in 2006 and at the time it was considered to be . 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. Flight Center, NASA Earth Observatory (2019, September 24). Polar bears have been around for a long time (first diverging from grizzlies 4-5 million years ago), surviving some very strong fluctuations of the environment, so its difficult to theorize how this could have happened without them "temporarily going extinct", but keeping their DNA within grizzly bears. (7) Assignment at the beginning of the week that is taken up at the end. Heat The long-term trend for Arctic sea ice extent has been definitively downward. Students will learn about the three scientifically recognized components of love: sex drive (libido), attraction and attachment. 0000002964 00000 n ***************************************************************************. Remote Sensing. Side effects of anabolic steroid use is also discussed. We are looking at an evolutionary change in the long term where overlaps are increasing and polar bears dont have a lot of options. 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. Scientists believe the pizzly arose when polar bears migrated south due to shrinking arctic ice, where they met up with grizzlies and mated. Water 1998 - 2023 Nexstar Media Inc. | All Rights Reserved. However, some biologists disagree, saying that hybridization is natural and doesnt always produce negative results. A polar bears life seems simple enough: eat seals, mate, and raise cubs. Students will learn about two animals (green sea slug and yellow spotted salamander) that can photosynthesize due to symbiotic relationships with algae. Thanks for contacting us. The maps above show the difference in sea ice extent around Baffin Bay on July 15, 1993 and July 15, 2013. 4 0 obj <> endobj xref Wenn Sie Ihre Auswahl anpassen mchten, klicken Sie auf Datenschutzeinstellungen verwalten. The offspring share similarities in appearance with both parents. The model took into account the relationship between sea-ice availability and the bears body fat and variable litter sizes. The Teacher-Author indicated this resource includes assets from Google Workspace (e.g. SCIENCE READING ARTICLES (ALL CAN BE FOUND IN THE MEGA BUNDLE): Article #1 Why We Love and Hate Spicy Foods. This is especially seen in bird populations like peafowls and birds of paradise where the males exhibit extraordinarily beautiful plumage and intricate and interesting courtship behaviors. 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. 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 . 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. Students will learn about how some fish are able to change sex from male to female or from female to male. A threat to genetic diversity? But Mr Servheen said not very much was known yet about these 'grolar' and 'pizzly' bears. Polar bears are often considered the poster-child species for climate change impacts. 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.