Before you read any further, I want you to take a minute and try to answer the question in the title. Go ahead and write down (or at least think about) the definition that scientists use to determi…
How do new species – or completely new types of organism – emerge? Time and separation are the key factors.
A new species of bigger and super-fertile all-female crayfish originated almost instantaneously because of a genetic accident
Given the fervour with which naturalists scoured Southeast Asia in the 19th century looking for new bird species, you'd think the region would be tapped out. But nature can still find ways to sneak up on us: Two previously undescribed species have on
Blue ducks (whio) live in both the North and South Island – they’re isolated by distance, but how isolated are they genetically? Physically there are visual differences – the South Island whio is larg
The arrival 36 years ago of a strange bird to a remote island in the Galapagos archipelago has provided direct genetic evidence of a novel way in which new species arise.
Mitonuclear conflict—a struggle between the genes in a cell’s nucleus and those in its mitochondria—might sometimes split species in two.
Cross-species hanky-panky likely common among great apes—including humans
The Rift Valley Lakes of Africa tell the amazing evolutionary story of a small fish inside a species pressure cooker, unlike anywhere else on the planet.
The Congo River’s torrential currents divide fish populations long term