VOA慢速英语:新的研究提供了神秘人类物种的证据

extinct – adj. no longer living or existing

ghost – n. the spirit of a dead person that can appear to living people

fossil– n. part of an animal or plant from the past that has been preserved in rock

correspond – v. to be the same or similar

fate – n. what happens to a person, especially when it is something bad

ultimate – adj. final or most important

evolutionary – adj. gradual process of change and development