Why do octopuses have eight arms? How do fish breathe underwater and are jellyfish actually made of jelly? Author and illustrator Yuval Zommer provides the answer to these and many more fishy facts…
How does an animal breathe underwater?
All animals need to breathe in oxygen to stay alive. Land animals get oxygen from the air. Some sea creatures, such as sea turtles and whales, come up to the surface to breathe in air but others filter oxygen out of the water. Fish, squid and crabs breathe through gills – feathery flaps in their body that take in water and filter out useful oxygen. Jellyfish, corals and sea anemones take in oxygen through their skin.
Fact: A sperm whale can hold its breath for two hours
When is a turtle a sea turtle?
When it lives in the sea! A sea turtle has a smooth shell so it can move through water easily. It also can’t hide its head inside its shell like other turtles.
Fact: Turtles don’t have teeth. Instead their jaws have razor-sharp edges that they use to slice through their food.
Is a jellyfish made from jelly?
No! But a jellyfish has no bones so its body is soft and wobbly. A jellyfish isn’t actually a fish at all.
Fact: If a jellyfish is cut in half it becomes two living jellyfish.
Why does an octopus need eight arms?
An octopus uses its arms in lots of clever ways. Each arm has suckers and taste buds to help it pick up and taste food. Its arms are full of brain cells so each arm has a mind of its own. Tentacool!
Fact: Did you know… an octopus has three hearts?
Do sharks really eat people?
There are over 500 types of shark and they all eat meat. Sometimes sharks bite people by accident if they mistake them for a seal or big fish. Sharks don’t hunt humans.
Fact: A tiger shark shoots its stomach out of its mouth to give it a rinse after a meal.
The Big Book of the Blue by Yuval Zommer (HB £12.95) takes a fun and educational look at the wonderful world of underwater creatures. Packed full of amazing facts and quirky illustrations, it will be devoured by children eager to dive deep into the mysterious depths of our seas and oceans. Recommended for ages 4+. Published by Thames & Hudson.