Top 10 Facts About Fish

There are lots of fish in the sea and some haven’t even been discovered yet.

There are over 30,000 species of fish.

Fish use their gills for breathing. They are often found on the side of their bodies.

Fish breathe through their gills.

Imagine swimming in the sea and not being able to blink. The only fish that can blink is a shark.

Most fish don’t have eyelids.

Most fish are cold-blooded unlike us who are warm-blooded. There is an exception though…

Fish are cold-blooded!

They are often slimy which helps them glide through water more easily.

Scales help fish to swim.

A vertebrate animal is an animal with a spine and bones. However, you can find invertebrates in the sea too.

Fish are vertebrate animals.

Fish are very speedy swimmers. Some of the fastest ones are sailfish, marlin and tuna.

Fish are speedy!

Fish might not talk to each other like we do. However, studies show that they do communicate!

Fish talk to each other!

You can find fish in lots of different places. As long as it has water, of course!

Fish live in all sorts of waters.

The biggest fish on the planet is a whale shark. It can grow up to 12 metres long and can be as heavy as 18.7 tonnes.

Some fish are huge!