Speciation occurs when reproductive barriers substantially reduce gene flow between lineages. Understanding how specific barriers contribute to reproductive isolation offers insight into the initial ...

Scientists map how climate-driven extreme heat and human land use together push almost 8,000 vertebrate species toward extinction.

In a major breakthrough for conservation biology, researchers from McGill University and Mexico have identified two new crocodile species living in isolation on Cozumel and Banco Chinchorro in the ...

Amphidromous fish – which migrate between freshwater streams and the sea – can move between habitats thanks to ocean currents. Since island streams are generally small and vulnerable to human impact, ...

In the heart of Canada’s Rocky Mountains, an unassuming yet remarkable butterfly has been quietly flying under our scientific radar for years. With a wingspan of an inch to an inch and a half, and ...

WASHINGTON, Oct 4 (Reuters) - The Dodo, the famous flightless bird that inhabited the Indian Ocean island of Mauritius, is a case study in extinction caused by humans. The Dodo, finely adapted to its ...

Japan's long chain of islands supports a surprisingly rich variety of wildlife, created by isolation, mountains, forests, and ...

New species can form astonishingly quickly — or the process can take eons. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Charles Darwin ...

Some of the best known species on Earth may not be what they seem. Credit...Steve Holroyd/Alamy Supported by By Carl Zimmer Naturalists have been trying for centuries to catalog all of the species on ...