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The red-billed leiothrix is a non-native species in Hawaii

Life

Birds introduced to Hawaii have evolved rapidly in just decades

Non-native birds are replacing Hawaii’s endemic species, adapting to new environments at a blistering pace of evolution on the island of O’ahu

Hell's Gate in New Zealand is being used as an open-air laboratory

Life

Scientists dunked test tubes in hot springs to recreate life’s origins

Atlantic killifish

Life

Pollution-proof fish borrow genes from relatives to survive toxins

Humans

Writing: Making Your Mark reveals the power of the written word

Archocyrtus kovalevi likely fed on the nectar of gymnosperms

Life

Pollinators may have evolved 40 million years before flowers existed

This illustration shows an artistic reconstruction of two individuals of Peregocetus, one standing along the rocky shore of nowadays Peru and the other preying upon sparid fish. The presence of a tail fluke remains hypothetical.

Life

Amazing four-legged fossil shows how walking whales learned to swim

CRISPR lizard

Life

Albino lizards are the world’s first genetically modified reptiles

satellite ocean scene

Earth

Gaia rebooted: New version of idea explains how Earth evolved for life

Life

Animal with an anus that comes and goes could reveal how ours evolved

Life

How the zebra got its stripes: The problem with ‘just-so’ stories

The mystery of why zebras have stripes has puzzled biologists for decades, and while we are closing in on the answer, the question isn’t settled yet

Life

Controversial fossils suggest life began to move 2.1 billion years ago

Life

Australia has been home to hopping kangaroos for 20 million years

Life

Human or hybrid? The big debate over what a species really is

Life

Is the idea of species now more trouble than it is worth?