Cats spend a large part of their lives sleeping, often more than half the day.

The longer version

Sleeping for long stretches is an energy strategy inherited from solitary hunters. A cat's prey is small, so a successful hunt supplies only a modest meal, and stalking burns far more energy than it returns unless the attempt succeeds. Conserving energy between hunts makes the arithmetic work.

Feline sleep also includes many short dozes rather than one long block. During these light phases the ears keep twitching and the brain stays partly alert, so a sudden sound can bring the animal upright instantly. Deeper sleep with dreaming comes in shorter bursts, often curled up in a warm, sheltered spot where the body loses little heat.

Where this entry sits

This collection gathers small surprises about mammals, reptiles, amphibians, birds, fish, insects, and the pets living alongside people. Expect odd details about senses, anatomy, and everyday behaviour that many people never notice in the animals around them. The full list sits on the Animals page, where every entry is listed in order.