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Evolution

Why some cuckoos have blue eggs

Cuckoo eggs come in a wide variety of colours and patterns, but why?

Wild horses lost their camouflage because of humans

Scientists find the genetic mechanism that determines the colour patterns of wild horses.

The Black Death has been hiding among us for thousands of years

Fossil DNA reveals that the plague is much older than previously suspected. The discovery could shed new light on the evolution of a deadly disease.

The enamel on your teeth came from prehistoric fish

A new study combining genes and 420 million year old fossils reveals that our tooth enamel developed from fish scales.

Discovery of new whale species fills evolutionary gap

Scientists discover a previously unknown ancient whale species--helping them understand how whales evolved into the many species that exist today.

Suggesting answers to one of Darwin’s mysteries

Why do we see so little evolution in some fossils?

Goby behaviour says much about sexual selection

One fish off the coast of central Norway has set a record for the number of female mates it had. And that’s not all.

Alzheimer’s prevention can vary between populations

A gene variation that protects against Alzheimer’s is missing in most Danes but not in other Nordic populations.

Scientists solve the riddle of eel evolution

European and American eels emerged as separate species 3.5 million years ago -- yet they can still breed with each other. Scientists can now tell us how.

Why dinosaurs avoided the equator for 30 million years

Researchers have discovered why it took the dinosaurs 30 million years to capture the equator.