Untitled Document
 Starfish
are interesting sea animals. They look like stars! This is why they
are also called “sea stars.” Starfish have many arms. Most have 5
arms, but some have 10, 20, or even up to 40 arms! Starfish are about
12 to 24 centimeters, and can weigh 5 kilograms. Then, how many species
of starfish are there in the world?
The starfish got its name from its star-shaped body. Unlike its name,
it is not actually a fish! It is an invertebrate. Interestingly, it
has no brain. It doesn’t have a single drop of blood in its body either!
Sea stars can be found in all the world’s oceans. They are also found
in shallow waters, but never in freshwater bodies. Amazingly, if a
starfish loses its arm, it can regenerate the same one in about a
year! If a starfish is chopped into pieces, each piece can grow a
whole new starfish!
There are over 2,000 species of starfish in the world. They come in
many different colors, sizes, and shapes. A female starfish can produce
around a million eggs at one time. To our surprise, starfish can change
their gender whenever they want! In the wild, they can live up to
35 years. |
|
|
|
