Interesting Facts for Kids. 66. Scotland's national animal is a unicorn. 67. Tigers have striped skin, ... Fish can cough to clean their gills from dirt particles and bacteria. 127.

Cbeebies shared facts about clownfish (Picture: BBC) Another added: ‘The frustrating thing is, it IS interesting that some fish can change sex.

The world’s most common fish, the 'bristlemouth,’ is a member of the genus Cyclothone and can't be seen with the naked eye.Living deep in the ocean, 100-250 feet down in the ocean, this small ...

Fish show more variation in their bones than birds and lizards, Sparks says. That’s why there’s less morphological research on those other animal groups—their skeletons are relatively uniform.