Dolphins ‘Smile’ When They Play Together, Research Footage Reveals

Gizmodo
Playing Dolphin

This Fish Doesn’t Just Walk—It Tastes With Its Legs, Too

Gizmodo

Photo of a sea robin

Tasmanian Tiger Ancestor Ate All of Its Prey—Even Bones and Teeth

Gizmodo

The Oligocene carnivore B.

Scientists finally think they know why giraffe necks are so long

Tech Insider
two adult giraffes walking with one smaller baby giraffe on a grassy plain
A new study questions the decades-long theory about why giraffes have such long necks.

Douglas Cavener

Cockroaches wouldn't exist without humans. We helped them become one of the world's worst pests, according to a new study.

Tech Insider
German cockroach
A German cockroach on a piece of bread.

Schellhorn/ullstein bild via Getty Images

Scientists witnessed an orangutan treating his wounds with medicinal plants, showing human-like behavior

Tech Insider
Orangutan with a wound under its left eye
Rakus, a Sumatran orangutan living in Indonesia, chewed medicinal leaves and applied them to his own facial wound to speed healing.

ARMAS/SUAQ PROJECT

A single genetic tweak caused human ancestors to lose their tails 25 million years ago — but it came at a cost

Tech Insider
A diagram represents the human pelvis. The coccyx is highlighted in red.
A human pelvis contains a coccyx, the remnants of an ancestral tail.

Sebastian Kaulitzki/Science Photo Library/Getty Images

Mummified animals Napoleon's scientists brought back from Egypt sparked a pre-Darwinian debate about evolution

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A side-by-side image of Georges Cuvier and Jean-Baptiste Lamarck both from the early 19th century
Georges Cuvier (left) and Jean-Baptiste Lamarck fundamentally disagreed on whether or not species can change over time.

GeorgiosArt/iStock via Getty Images Plus; Kean Collection/Archive Photos via Getty Images

A tiny ancient elephant that roamed Sicily 200,000 years ago had babies the size of pet dogs

Tech Insider
A photograph of an exhibit at the American Museum of Natural History showing a reconstructed model of a Sicilian dwarf elephant and its baby.
An adult Sicilian dwarf elephant was about the size of Shetland pony. Its baby was more akin to a dog.

Maiya Focht

How lice evolved alongside humans to become the perfect pests — and trackers of human migration

Tech Insider
Close-up of a head louse.
Close-up of a head louse.

Oxford Scientific

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