Among the mani amazing animals in the world, few are as strange and unusual as the octopus. There are around three hundred different kinds of octopus is, and they coming all sizes. The smallest is only around two point five centimeters long. But some octopuses can grow up to more than five meters law. There was even an octopus over nine meters long. The octopus is body is very interesting. All octopuses have eight arms. Their brain is not just in their head, but also in their arms. This helps them to think about and do more than one thing at once. Octopuses can also fit into small places because they do not have any bones. And did you know that octopuses have three hearts? These hearts work with different parts of the body. Octopuses can also do many amazing things. Most of them can change their color and shape to look like plants or other sea animals, and they can also make ink. They keep IT inside a very small bag in their body when they produce ink. The ink makes you hard for other animals to see them. This helps the octopuses to get away fast. What's more, when an octopus s loses an ARM IT can grow IT back. Studying amazing animals like the octopus is important because we can learn a lot from them, but they also show us how wonderful nature is and why is important to protect IT.