Credit: CC0 Public Domain Man’s best friend might actually belong to a woman. In a cross-cultural analysis, Washington State University researchers found several factors may
Chimpanzees join their close bond partners – related group members and friends – to battle rivals. Credit: Liran Samuni, Taï Chimpanzee Project Chimpanzees, one of
Seychelles warbler. Credit: Photo taken by Remi Jouan, CC BY-SA 3.0 / Wikimedia Young Seychelles warblers fare better if their elderly parents have help raising
Credit: Pixabay/CC0 Public Domain Dull, featureless camouflage provides better protection from predators than zebra stripes, according to a new study. Biologists explaining the existence of
The crocodiles have had a much greater diversity of forms in the past. Examples include fast runners, digging and burrowing forms, herbivores, and ocean-going species.
Thin section of a partial gorgonopsian canine under polarized light. Serrations are evident on the right side of this specimen. Credit: Megan Whitney When most
Credit: Unsplash/CC0 Public Domain Most insects can fly. Yet scores of species have lost that extraordinary ability, particularly on islands. On the small islands that
A Tsimane family in a traditional house with no walls. Credit: Michael Gurven In the nearly two centuries since German physician Carl Wunderlich established 98.6°F
