Animals are multicellular organisms that belong to the class Animalia. Animals have a fixed body plan as they develop and later in their life they might undergo the process called as Metamorphosis. Animals in the world are motile, meaning they are capable of independent locomotion. The fossil records show that the animals are found on the earth over 542 million years ago.
Mostly all the animals have different stages in their life cycle.
For example the life cycle of the frog is:
Egg -> Tadpoles -> Frog
And life cycle of the butterfly is:
Egg -> Pupa -> Butterfly 28°
Species that belong to the animal's class have different characteristics. They are:
Some more common characteristics of the animals are:
Animals can be classified in different ways but the general classification can be easily done by their feeding habit.
Animals are classified into four different categories by their eating habit.
The classifications are: