Most cats hate getting wet. Fishing cats are the opposite. They have slightly webbed front paws, which help them paddle, and a thick, oily coat that keeps the water off their skin. They will happily dive under a river to grab a fish that's swimming past.
Watching a fishing cat hunt is incredible. It crouches on the bank, perfectly still, eyes locked on the water. Sometimes it taps the surface gently with one paw, copying the sound of an insect to make a curious fish swim closer. Then - splash - it scoops the fish out faster than you can blink.
As well as fish, fishing cats eat frogs, crabs, snakes and small birds. They live in mangroves, marshes and along quiet rivers. The Sundarbans and other wetlands of Bangladesh are some of their most important homes anywhere in the world.
Fishing cats are quite rare. They are shy and hard to spot, and many of the wetlands they used to live in have been drained for farming. Scientists in Bangladesh now study them with hidden cameras, and try to teach villagers that fishing cats are friends - they keep snake numbers down.