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
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
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…
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. Watch this video for free by accessing it at school.
The Congo River’s torrential currents divide fish populations long term