Classification means arranging things into groups. There are many living things in surroundings. To make learning simple, we must classify them first. Scientists use similarities and differences to classify living things into groups. They have classified living things into animals and plants. Let us know more about animals around us.

Animals are divided into two main groups :

Vertebrates : Animals that have a spine or backbone.

Invertebrates : Animals that have do not have a spine or backbone.