Students will learn about sexual selection and how female mate choice has strongly influenced the physical and behavioral traits that have evolved in males. These include: FREE BONUS Article #19 - Benjamin Franklin, Copyright 2016 Anh-Thi Tang (Tangstar Science). This entire document, or any parts within, may not be reproduced or displayed for public viewing. and 9 more scientists. which I cannot fully describe due to reaching the text limit in this description space. Why are black swans becoming stranded in the ocean off WA? 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. August 5, 2021. "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.". Besides using this article for a sub plan, this resource also helps promote science literacy which is emphasized in many curricula including NGSS and TEKS standards. The interbreeding is resulting in the birth of an entirely new species of bears, that could one day even replace polar or grizzly bears entirely. How antibiotic resistance develops is also discussed. Thanks for reading Scientific American. (3) Independent work for early finishers. The "Pizzly" bear first spotted in 2006 in the Canadian Arctic has the "white fur of a polar bear but the long claws, humped back, shallow face and brown patches of a grizzly," according . Article #42 The Evolution of Pretty Boys. TEACHERS WHO HAVE USED THIS PRODUCT HAVE SAID: "Love your articles! It's thought grizzlies and polar bears are struggling to cope with climate change but their hybrid is better adapted to warming. There is a call for increased science literacy in classes, and a push to make science relevant to students. They will learn about the conditions under which fossil fuels are created and what turns some organic remains into oil and natural gas, while other remains form coal. The safety of tattoo inks is also discussed along with how they can be affected by MRIs. The pizzly bear is the result of polar. Students will learn about the usefulness of pain to survival and about CIPA (congenital insensitivity to pain with anhidrosis). The Pizzly Bear, which was first documented in 2006, doesn't have as much blubber as the polar bear. My students loved this topic and were engaged for the start. They will find out what type of reproductive advantages this gives the fish and what conditions trigger sex changes. Mother bears are also producing smaller cub litters, which the team projected will continue to decline for the next three polar bear generations. 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. However, some biologists disagree, saying that hybridization is natural and doesnt always produce negative results. 0000070665 00000 n 0000001136 00000 n Some interesting studies are also discussed which examine how lowering certain hormones affect libido and attachment. 0000018689 00000 n 0000044163 00000 n Article #9 Diamonds, the Truth Behind the Bling. Please look at the time stamp on the story to see when it was last updated. Chris Servheen, a bear biologist and Adjunct Associate Research Professor at the University of Montana, said sightings of this hybrid bear species have been very rare in the past. Article #6 Hyponatremia: Death by Water Intoxication. Students will learn about the downsides of living in space. 0000001343 00000 n HTn0}Wpo6E6]{V{D/e7~NX$ER< A 2017 study in the journal Arctic indicated that eight hybrids had been born of a mother polar bear who mated with two grizzlies. Article #23 Human Cyborgs vs. Bionic Humans. Updated to Include Distance Learning Options. Additional licenses can be purchased at a discount for others to use in your department. In 2006 a bear shot by hunters in the Arctic was tested and confirmed as a polar-grizzly hybrid. The bears are "more resilient to climate change and better-suited for warmer temperatures," paleontologist Larisa DeSantis. Understanding how climate is different from weather is key to understanding the evidence that tells us climate change is happening. As rainbow trout meet and interbreed with dwindling cutthroat trout populations, the survival of cutthroat trout is at risk. The model took into account the relationship between sea-ice availability and the bears body fat and variable litter sizes. Failure to comply is a copyright infringement and a violation of the Digital Millennium Copyright Act (DMCA). A new study shows that polar bears are spending less time on sea ice, leading them to fast longer, become thinner and have fewer cubs. It's the climate change diet and scientists say it's not. "They often have dark, darker fur rings around their eyes. Students will learn about slow twitch and fast twitch muscle fibers, how they create and use energy differently, how they respond to training and which types of sport each muscle fiber is best suited to helping an athlete excel at. Also discussed is how this data supports the Out of Africa theory of human migration and expansion. Adventures in the Arctic: 6 Questions with Kristin Laidre. 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. Conventional drilling versus fracking is compared. 0000002964 00000 n 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 perhaps marks an evolutionary 180 from when polar bears and grizzlies diverged from a common ancestor hundreds of thousands of years ago, Vital Ground reported. These hybrids, sometimes called pizzly bears or grolar bears, have been spotted in the wild as far. The students were asking many questions after reading. 0000044917 00000 n The original version of the story misstated the name of the Montana basin. On average, the bears are spending 30 more days on land now than they did in the 1990s. Some of them take on almost a honey colour." Scientists have proposed. 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. The Prius isnt the only environmentally conscious hybrid out there. 4 Bundle - 10 Articles for 27% OFF. Get Ready India: John Legend & Raja Kumari Set To Perform At A Limited Seating Walkers & Co. Tour. warmed at twice the rate of the global average. SCIENCE Articles Vol. 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. This can affect their overall health and reproductive success.. ANCHORAGE, Alaska Some polar bears in the Arctic are shedding pounds during the time they should be beefing up, a new study shows. Image of the Day There, they. They will examine the difference between totipotent, pluripotent and multipotent stem cells. Remote Sensing. But the rate at which species interbreed is accelerating because of climate change, researchers say. The scale has been provided for students to diagnose their own Facebook dependency. ), "Used this as a sub plan and the kids really loved the article! 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. SCIENCE READING ARTICLES (ALL CAN BE FOUND IN THE MEGA BUNDLE): Article #1 Why We Love and Hate Spicy Foods. Write by: 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. They will learn how the fecal transplant helps get rid of the infection, how fecal samples are obtained and how they are administered into the body. This is a great extension activity for classes studying the digestive system or nutrition. ), "Used this last week as a sub plan while I was gone, and it was a huge success!" 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. 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. They have the ability to fast, but if they dont eat for longer periods, they get thinner. Each article sub plan comes in two versions with full answer keys: 1) Easily printable PDFs, as well as 2) Google Slides. 4 42 Climate change fills polar bears with toxins The melting ice around Greenland has changed the polar bear's diet. Article #33 Blood Doping: More Blood, More Medals. Mr Servheen said not very much was known about the grolar and pizzly bears, as little contact had yet to be made between them and humans. The researchers found larger litter sizes when the mothers were in a good body condition and when spring breakup occurred later in the year, meaning bears had more time on the sea ice in spring to find food. Members of theHeliconiusbutterfly genus in the Amazon breed with other species within the genus and have developed more distinctive colors in the process. 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. We didnt see it much in the past but we are now. The two page format makes it economical for printing and provides a length that students willingly read and complete. Image of the Day Time spent in weightless conditions lead to serious bone loss and almost immediate and severe muscle atrophy. Get more great resources from Wicked Weather Watch here and on its website at wickedweatherwatch.org.uk. Quizzes with auto-grading, and real-time student data. 0000008401 00000 n Also discussed is the reason why women, in general, are less pigmented then men. 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. They will learn how tattoos are applied, what makes them permanent, and how the immune system causes tattoos to fade. 0000025750 00000 n 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. Grizzlies, on the other hand, can eat whatever they want. 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. 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. A fluffy reminder of how climate change is transforming our planet at an alarming rate. So-called pizzly bears were first spotted in the wild in 2006. Thanks for reading Scientific American. The . (MAURIZIO GAMBARINI/DPA/AFP via Getty Images). 0000057567 00000 n The rate at which humans are driving species to extinction is 1,000 times faster than the rate at which animals would go extinct naturally, Pimms research shows. 0000035729 00000 n The offspring share similarities in appearance with both parents. Their paws can often be dark too or at least around the toes. They will read about the difference between embryonic stem cells and adult stem cells as well as understand the controversy over stem cell research. 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. 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.. Heat 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. 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. 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. Their findings show that the two bears split into distinct species around 1.5 million years ago, with the . In 2006, Andrew Derocher was in the field with an Inuit hunter when a message crackled over the CB radio: A strange-looking bear had been shot a few miles away. L. David Mech, Bruce W. Christensen, Cheryl S. Asa , Margaret Callahan, Julie K. Young/Wikipedia, To Increase Disaster Aid, Do Not Mention Global Warming, New Tool Helps Predict Where Wildfire Smoke Will Blow, Some Disaster Prevention Spending Reaps Higher Rewards, Climate Preparation Report Released by Panel Previously Disbanded by Trump. 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. 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. 0000011599 00000 n Article #43 Living in Space Harms Your Body. 0000010543 00000 n Snow and Ice 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. 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. 0000070925 00000 n 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? Explore our digital archive back to 1845, including articles by more than 150 Nobel Prize winners. One example is the change in color of the peppered moth from its light colored form to its dark colored form. 0000006824 00000 n Article #40 The Truth Behind Bottled Water, Article #10 Great Minds in Science - Rachel Carson. These experiments demonstrate a strong correlation between the ability to exert self-control in children and their later success as adults. "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.". 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). Cold case: Who murdered this man on Lookout Mountain? Water If the sea ice disappears, some may be successful but a lot wont be successful. Are bills set to rise? Flight Center, NASA Earth Observatory (2019, September 24). Grolar bears: Climate change could be behind grizzly-polar bear hybrid, scientists say. 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. The ice cap tied for the sixth lowest extent on record, continuing a long-term decline. Students will learn about how bottled water companies have convinced us to buy bottled water and the environmental impact of creating so much plastic water bottle waste. Add highlights, virtual manipulatives, and more. This resource includes a 5-page factsheet on Greta and her role in . This story has been shared 134,090 times. Land So-called "pizzly" bears were first spotted in the wild in 2006. Five-centuries-old saffron and ginger found preserved in shipwreck off Sweden, NBA star Ja Morant suspended, 'takes full responsibility' for nightclub gun video, 15 people rescued from Central Victorian mine after fire. 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. 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. 0000018199 00000 n With global warming and sea-ice declines, it becomes harder for polar bears to hunt their preferred preyseals. Mr Servheen said it was hard to know how many of the bears existed. It was easy to prepare and I had a very successful class using this lesson. A threat to genetic diversity? 0000044429 00000 n 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. Students will learn about the limits of cell division and how cancer cells circumvent these limits. 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. And the shape of a grizzly head.. So-called "pizzly" bears were first spotted in the wild in 2006. The grizzly-polar bear hybrid has only been found a few times. The event horizon and singularity is also explained as well as the classification of three types of black holes. Thanks!" Water 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. Less than a year after her first protest, Greta Thunberg has become one of the most famous climate activists in the world, speaking to world leaders and helping to convince them that laws needed to change. As climate change continues to threaten the habitat of the polar bear, the endangered creatures are being pushed further into contact with other bears. Article #25 The Science and Evolution of Human Skin Color. 2019 Arctic Sea Ice Minimum Is Second Lowest. 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. While polar bears have longer skulls in order to grab seals out of the water, their molars are smaller than is typical for their body size because all they eat is blubber all day. Only animals that were already generalized or able to adapt survived, lamented DeSantis. Sometimes, pregnant females dig in the sea ice to create maternity dens, where they give birth and take care of their cubs. 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. Cub litter size was also affected by the body condition of the mothers and by sea-ice availability. Students will learn about the properties of a diamond and what makes it different from graphite, different methods of creating synthetic diamonds, and what applications these synthetic diamonds have.
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