Animal Facts

An octopus pumps blue blood through three separate hearts — and one of them actually stops beating whenever it swims.

A sloth's slowness isn't laziness — it's a finely-tuned survival strategy powered by an extraordinarily slow metabolism.

The saying is rooted in truth — elephants recall water sources, routes and individuals across decades.

Hummingbirds are the only birds that can hover in place and fly backwards, beating their wings up to 80 times a second.

This smiling Mexican salamander can regrow limbs, organs and even parts of its brain — with no scarring at all.

With the warmest fur of any mammal and a coat that changes colour by season, the Arctic fox thrives at -50°C.