Because literature and film so often depict nature as inherently unfair, people assume that animals live in a "dog-eat-dog world." Inequality might seem like an inevitable fact of life, but a new analysis of data for 66 species ...
Evolution
Oct 16, 2023
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99
The Texas ocelot (Leopardus pardalis albescens) is endangered due to historic hunting, habitat loss, inbreeding, and traffic collisions. Today, only between 50 and 80 ocelots remain in the U.S., exclusively in Willacy and ...
Plants & Animals
Oct 13, 2023
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60
Since gay couples have fewer children, the high frequency of same-sex relationships in humans is puzzling from an evolutionary point of view. Perhaps there are social advantages such relationships confer on a group, or perhaps ...
Evolution
Oct 12, 2023
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21
Both elegant and fierce, killer whales are some of the oceans' top predators, but even they can be exposed to environmental pollution. Now, in the largest study to date on North Atlantic killer whales, researchers in Environmental ...
Plants & Animals
Oct 11, 2023
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38
When an asteroid hit the Earth 66 million years ago, it set off a devastating mass extinction. The dinosaurs (except for a few birds) all died out, along with lots of the mammals. But some small mammals survived, laying the ...
Evolution
Oct 5, 2023
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204
A trio of ecologists from Estación Experimental de Zonas Áridas, Universidad de Granada and Centro de Investigaciones sobre Desertificación has found same-gender sexual behavior to be widespread across mammal species and ...
Recently, several mammals have been reported to "glow" under ultraviolet (UV) light, including our beloved platypus. But no one knew how common it was among mammals until now.
Plants & Animals
Oct 4, 2023
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69
Throughout the past 500 million years, our planet has experienced a total of five mass extinctions. One of these—the Permo-Triassic mass extinction event—led to the demise of roughly 90% of Earth's species.
Earth Sciences
Oct 2, 2023
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7
A new article published in PeerJ, authored by Camila Ferreira Leão at Universidade Federal do Pará sheds light on the effects of climate change on carnivorous mammals in the Amazon and their representation within Protected ...
Plants & Animals
Sep 29, 2023
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34
For decades, fish-eating killer whales in the Pacific Northwest have been observed harassing and even killing porpoises without consuming them—a perplexing behavior that has long intrigued scientists.
Plants & Animals
Sep 28, 2023
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134
