동아사이언스

종족의 보존

과학동아 1990년 06호

to be extinct, and saving those in danger of extinction. This desire to preserve the diversity of life is a pleasant comment on the humanity and civilized instincts of people.It was not always so. The people of the Stone Age are partly responsible for the disappearance of the magnificent mammothes and other large mammals of the time.In modern times we have seen careless and wanton destruction ...