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Why do cats purr?

Question

Why do cats purr?

Cats are thought to purr for a number of different reasons, not just when they are content

Microscopic calcite structures reveal the protein skeleton of an ancient sponge

Life

Sponge fossils suggest animals already existed 890 million years ago

News

Galapagos tortoises use their self-destructing cells to avoid cancer

Life

Galapagos tortoises use their self-destructing cells to avoid cancer

News

sea otter

Life

Sea otters use muscles to chemically generate heat without shivering

News

Can we use nudge theory to help endangered animals save themselves?

Life

Can we use nudge theory to help endangered animals save themselves?

Features

Extinct Sicilian elephant lost 8000 kilograms as it evolved and shrank

Life

Extinct Sicilian elephant lost 8000 kilograms as it evolved and shrank

News

Seagull eggs in the UK have been contaminated with plastic additives

Life

Seagull eggs in the UK have been contaminated with plastic additives

News

Complex social lives of orcas revealed by drone observations

Life

Complex social lives of orcas revealed by drone observations

News

Female seahorses cheat on their mate when they can no longer smell him

Life

Female seahorses cheat on their mate when they can no longer smell him

News

Cattle that spend more time around humans have smaller brains

Cattle that spend more time around humans have smaller brains

Cattle have brains around 26 per cent smaller than the extinct aurochs, which may be their wild ancestor – and they are even smaller among dairy cows that spend more time with humans

News

Life

Water voles released in Yorkshire in boost to endangered species

News

Life

Tiny animal revived after 24,000 years entombed in Siberian permafrost

News

Video

Why do cats love catnip? Science with Sam explains

Video

Life

Wild horses and donkeys dig desert wells that boost biodiversity

News