The octopus' skin can change color. ... skin matches rocks, corals and other items nearby.
Its
Octopus's arms are eight. ... arms have no tentacles.
Their
... fins have different function.
Their
Tropical fish's scale helps the fish to swim. ... scale helps to maintain the speed.
Its
A turtle's shell is strong. ... shell is made up of 60 bones.
Its
Tropical fish's scales protect from predators. ... scales allows to swim easily.
their
The dolphin's tail is called its flukes. ... tail uses for swimming.
Its