<Tr> <Td_colspan="2"> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> An endangered species is a species which has been categorized as very likely to become extinct . Endangered (EN), as categorized by the International Union for Conservation of Nature (IUCN) Red List, is the second most severe conservation status for wild populations in the IUCN's schema after Critically Endangered (CR). </P> <P> In 2012, the IUCN Red List featured 3079 animal and 2655 plant species as endangered (EN) worldwide . The figures for 1998 were, respectively, 1102 and 1197 . </P>

Why some animals are considered as endangered species
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