Carnivore interactions are a game of risk and reward
Coyotes can eat by scavenging cougars' prey but it's a risky proposition as coyotes often end up killed by cougars too, a new study of predator interactions by Oregon State University shows.
Coyotes can eat by scavenging cougars' prey but it's a risky proposition as coyotes often end up killed by cougars too, a new study of predator interactions by Oregon State University shows.
Plants & Animals
Aug 25, 2021
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437
Burnout. It is a syndrome that is said to afflict humans who feel chronic stress. But after conducting a novel study using trail cameras showing the interactions between white-tailed deer fawns and predators, a Penn State ...
Plants & Animals
Jul 15, 2021
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15
Compared to most other bear species, very little is known about how female Andean bears choose where they give birth to cubs. As a critical component of the reproductive cycle, birthing dens are essential to the survival ...
Plants & Animals
May 18, 2021
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55
Brown bears that are more inclined to grate and rub against trees have more offspring and more mates, according to a University of Alberta study. The results suggest there might be a fitness component to the poorly understood ...
Plants & Animals
May 12, 2021
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117
Scientists use many proxies to reconstruct Earth's ancient climates. Pollen, diatoms, geochemical isotopes and fossils, for example, all contribute to piecing together past-climate puzzles. The ubiquity and wide geographic ...
Earth Sciences
Apr 29, 2021
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107
Scientists have sequenced ancient DNA from soil for the first time and the advance will transform what is known about everything from evolution to climate change.
Paleontology & Fossils
Apr 19, 2021
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51
A small group of leopards migrated to Asia about half a million years ago following their evolution in Africa, a new study suggests.
Evolution
Apr 14, 2021
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2205
Polar bears are often considered the poster-child species for climate change impacts. With global warming and sea-ice declines, it becomes harder for polar bears to hunt their preferred prey—seals. Increased global temperatures ...
Plants & Animals
Apr 2, 2021
4
203
A camera-trap study in the Mendocino National Forest in Northern California reveals that black bears are adept at finding and stealing the remains of adult deer killed by pumas. This "kleptoparasitism" by bears, as scientists ...
Plants & Animals
Mar 19, 2021
1
38
Every year, a new growth layer is added to the narwhal's spiraled tusk. The individual layers act as an archive of data that reveals what and where the animal has eaten, providing a glimpse of how the ice and environmental ...
Ecology
Mar 11, 2021
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70