I have saw many behaviours in many animals. There exists a vast variety of behaviours in animal kingdom. All behaviours found in animal kingdom may be kept in two major groups: 1. Innate Behaviour and 2. Learnt Behaviour. Inborn behaviours (without obvious learning) are considered as innate behaviour. In other words behaviours that are inherent, without patent learning during lifetime, are known as innate behaviour. Fish, duck, tortoise, crocodile etc. do not learn swimming. They start swimming after emerging from egg. Young spider without any learning weave web. Those behaviours which an animal learns during its lifetime by experience are known as learnt behaviour.