Specialisation is when the production process is split up into different tasks and each worker performs one of these tasks.
specialisation is the production of a limited range of goods by an individual or firm or country in co-operation with others so that together a complete range of goods is produced.
a zoologist is a person who studies behaviour,charateristics of the animals all around the world . he/she graduated in zoology and can do pg in it . after that they can do specalization in there favourite subject like heroetology or ornithology . then he/she has to go in the in the forests and broadcast thier programmes on television or they can work with some institutiona or wildlife magazines or can just work as an wildlife photographer for an magazine.it is a good,thriller adventorous and most important dangerous