Cardenolides

Two African crested rats stand face to face, nuzzling each other. The rodents are rabbit-sized and resembles a gray puffball crossed with a skunk. Their fur is various shades or brown and gray, with dark stripts that line its flanks from leg to its face.

The secret social lives of giant poisonous rats

Lisa Potter
science writer, University of Utah Communications
Nov 19, 2020

The African crested rat’s fur is packed with a poison so lethal just a few miligrams can kill a human. Biologists confirmed where it gets its poison, and uncovered an unexpected social life.