From upper left to lower right: binturong, masked palm civet, common palm civet, and small-toothed palm civet. These four species share similar ecology such as nocturnal, semi-arboreal, and ...

Speciation is the process by which a single species gives rise to two daughter species, which are genetically distinct and eventually unable to interbreed. Speciation can occur as a result of ...

Darwin’s Finches on Daphne Major Island, New Edition,” by evolutionary biologists Peter Grant and Rosemary Grant is the ...

This study presents a useful theoretical model of molecular evolution and attempts to use it to resolve the paradox of rapid evolution of ribosomal RNA genes. While intuitive, the model's underlying ...

This important study sheds light on how poison frogs gain their toxins, with surprising new data on low levels of toxins in previously non-toxic frogs. The authors propose a new theory for evolution ...

Key aspects of early bird evolution have been difficult to resolve, owing to a lack of suitably preserved fossilized remains. A fossilized skull of a bird that lived during the age of the ...