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Prehistoric horses, bison shared diet

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IMAGE: UC doctoral student Abigail Kelly studies a prehistoric jawbone for her study of extinct bison and horses in the Arctic.
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Credit: Andrew Higley/UC Creative
University of Cincinnati researchers studied the teeth of prehistoric horses and bison in the Arctic to learn more about their diets compared to modern species.
What they found suggests the Arctic 40,000 years ago maintained a broader diversity of plants that, in turn, supported both more and more diverse big animals.
The Arctic today is spartan compared to the wildlife-rich landscape during the ice ages of the Pleistocene epoch between 12,000 and 2.6 million years ago when wild horses, mammoths, bison and other big animals roamed the steppes and grasslands of what is now northern Canada, northern Europe, Alaska and Siberia. Short-faced bears, ground sloths and even cave lions called the 49th State home. ....

United States , Arctic National Wildlife Refuge , Tom Seaton , Abigail Kelly , Joshua Miller , University Of Cincinnati , University Of Alaska Museum , Alaska Department Of Fish , Alaska Museum , Alaska Department , ஒன்றுபட்டது மாநிலங்களில் , ஆர்க்டிக் தேசிய வனவிலங்கு அடைக்கலம் , டோம் சீடன் , பாங்கி கெல்லி , ஜோஷுவா மில்லர் , பல்கலைக்கழகம் ஆஃப் ஸிந்ஸந்யாடீ , பல்கலைக்கழகம் ஆஃப் அலாஸ்கா அருங்காட்சியகம் , அலாஸ்கா துறை ஆஃப் மீன் , அலாஸ்கா அருங்காட்சியகம் , அலாஸ்கா துறை ,

Oldest dog remains in Americas discovered in Alaska

Oldest dog remains in Americas discovered in Alaska
A shard of bone tells the story of a canine companion that trekked into an icy new world, providing clues to the migrations of the earliest Americans.
ByRobin George Andrews
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For about 20 years, specimen PP-00128 in the earth sciences collection of the University of Alaska Museum was thought to belong to a rather old bear. The femur fragment, small enough to hold between two fingers, had been excavated from a site along the southeastern Alaskan coast where archaeologists also uncovered the remains of fish, birds, mammals, and humans going back thousands of years. ....

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Oldest dog remains in Americas discovered in Alaska

Oldest dog remains in Americas discovered in Alaska
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United States , Carly Ameen , Krishna Veeramah , Douglas Levere , Angela Perri , Charlotte Lindqvist , Robert Losey , Paul Nicklen , University Of Alberta , Swiss Army , A Swiss Army , Durham University , Proceedings Of The Royal Society , University Of Alaska , Stony Brook University , University Of Alaska Museum , University Of Exeter , University At Buffalo , Nat Geo Image Collection None , Alaska Museum , North America , Last Glacial Maximum , Blake Channel , South America , Thule People , ஒன்றுபட்டது மாநிலங்களில் ,

Oldest dog remains in Americas discovered in Alaska

Oldest dog remains in Americas discovered in Alaska
msn.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from msn.com Daily Mail and Mail on Sunday newspapers.

United States , Carly Ameen , Krishna Veeramah , Douglas Levere , Angela Perri , Charlotte Lindqvist , Robert Losey , Paul Nicklen , University Of Alberta , Swiss Army , A Swiss Army , Durham University , Proceedings Of The Royal Society , University Of Alaska , Stony Brook University , University Of Alaska Museum , University Of Exeter , University At Buffalo , Nat Geo Image Collection None , Alaska Museum , North America , Last Glacial Maximum , Blake Channel , South America , Thule People , ஒன்றுபட்டது மாநிலங்களில் ,

Tasmanian Tigers and Wolves Evolved Uncannily Similar Skulls

Tasmanian Tigers and Wolves Evolved Uncannily Similar Skulls
Image: The Pask Lab
The extinct thylacine had the stripes of a tiger, the body of a canid, and the pouch of a kangaroo. These ill-fated, predatory marsupials are a classic example of convergent evolution, in which species independently evolve the same traits, and a new study breaks down just how remarkably similar Tasmanian tigers’ skulls were to those of wolves.
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Along with the rest of Marsupialia, the thylacine popularly known as the Tasmanian tiger split off from the gray wolf (and the rest of placental mammals) about 160 million years ago. In the long evolutionary trajectory that followed, despite living in different environments, the two animals wound up with very similar developmental adaptations to their skulls, according to a paper published in the journal Communications Biology. ....

South Australia , Flinders University , United States , Vera Weisbecker , Axel Newton , Monash University , University Of Alaska Museum , Communications Biology , Pask Lab , Alaska Museum , Best Deals , Bulk Snacks , Aerogarden Harvest , Topical Press , Getty Images , Mike Archer , தெற்கு ஆஸ்திரேலியா , ஃப்லிஂடர்‌ஸ் பல்கலைக்கழகம் , ஒன்றுபட்டது மாநிலங்களில் , அச்சு நியூட்டன் , மோனாஷ் பல்கலைக்கழகம் , பல்கலைக்கழகம் ஆஃப் அலாஸ்கா அருங்காட்சியகம் , தகவல்தொடர்புகள் உயிரியல் , பாஸ்க் ஆய்வகம் , அலாஸ்கா அருங்காட்சியகம் , சிறந்தது ஒப்பந்தங்கள் ,