'Death shadow' dinosaur unearthed in Argentina
Argentine paleontologists have announced the discovery of an apex-predator dinosaur that measured three stories from nose to tail and eviscerated its prey with sharp, curved claws.
Argentine paleontologists have announced the discovery of an apex-predator dinosaur that measured three stories from nose to tail and eviscerated its prey with sharp, curved claws.
Paleontology & Fossils
May 3, 2022
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162
Predators may keep prey populations healthy by acting as a selective force against genetic diseases. A new study found that wolves select adult moose based on age and osteoarthritis, a chronic disease that can be influenced ...
Plants & Animals
Apr 20, 2022
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746
Jaguars are the only species of big cat found on the American continent. They range as far south as Argentina, and once roamed as far north as the Grand Canyon in the U.S. Today the northernmost breeding population is in ...
Ecology
Apr 19, 2022
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8
They strut through grassy knolls, preen their feathers and bathe in Central Park's water fountain, all while leaving behind piles of poop—some 176 pounds' worth a day, to be exact.
Ecology
Apr 14, 2022
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8
Warming of the oceans due to climate change will mean fewer productive fish species to catch in the future, according to a new Rutgers study that found as temperatures warm, predator-prey interactions will prevent species ...
Ecology
Apr 12, 2022
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117
The top predator of the Jurassic and Cretaceous landscapes was usually a species of meat-eating dinosaur. These predators walked on two legs, had powerful jaws lined with sharp teeth and included species from groups known ...
Paleontology & Fossils
Apr 11, 2022
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57
Whales are threatened by a variety of human activities off the West Coast of the United States, including fishing, ship traffic, and pollution. Overlap between these stressors can compound effects on whale populations, but ...
Plants & Animals
Apr 6, 2022
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14
Lions typically aren't keen on making new friends. The giant cats guard their territory fiercely and can mortally wound a foe with a single swipe. While aggression is an advantage for apex predators in the wild, it poses ...
Plants & Animals
Mar 30, 2022
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213
Despite their reputation as living fossils, scorpions have remained evolutionarily nimble—especially in developing venom to fend off the rise of mammal predators. A new genetic analysis of scorpions' toxin-making reveals ...
Plants & Animals
Mar 28, 2022
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180
A breakthrough study by a specialist European research team, including scientists at the University of St Andrews, shows man-made underwater noise pollution is picked up by whales in a similar way they sense natural predators, ...
Plants & Animals
Mar 23, 2022
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249