Botany - Biodiversity and its Conservation Question with Solution | TestHub

Mammals are the most complex animal that cannot easily adapt the environmental changes and some mammals are used as a source of industrial raw materials. Thus, due to climatic change and hunting their population is getting down and become endangered. Mammalian species have the highest number of endangered species (177), accounting for $3.8\%$ of all vertebrate species. Related Theory Fish (including sharks) make up the largest group of vertebrates. Nearly half of all vertebrates are fish. The insect is the largest class of animals. It has over 7.00 .000 species.