VOA慢速英语:研究称洞穴熊的消失部分归咎于早期人类

extinction - n. the state or situation that results when something (such as a plant or animal species) has died out completely

data - n. facts or information used usually to calculate, analyze, or plan something

coincide - v. to happen at the same time as something else

determinant - n. a thing that controls or influences what happens

decline - n. a change to a lower number or amount