species, biological features of which do not correspond to the modern natural or changed by person conditions of existence, and capacity of adapting to them (see Adapting) are exhausted. Without a targeted support by a man E.s. are doomed on loss. As a rule, E.s. are registered in the Red books; in relation to them special measures on protection are established. See also Endangered species.
Qarang: Adapting, Endangered species