The secret social lives of giant poisonous rats

The African crested rat (Lophiomys imhausi) is hardly the continent's most fearsome-looking creature—the rabbit-sized rodent resembles a gray puffball crossed with a skunk—yet its fur is packed with a poison so lethal ...

Why do chimpanzees throw stones at trees?

Chimpanzees often use tools to extract or consume food. Which tools they choose for which purpose, however, can differ depending on the region where they live. Researchers of the Max Planck Institute for Evolutionary Anthropology ...

Tree-dwelling orangutans on ground

When researchers in Borneo set up camera traps to monitor tropical mammals on the ground, they didn't expect to be photobombed by orangutans.

Rainforest rodents risk their lives to eat

Hungry rodents that wake up early are much more likely to be eaten than rodents getting plenty of food and shut-eye, according to new results from a study at the Smithsonian Tropical Research Institute in Panama. The study ...

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