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Whales targeted by Japan face extinction threat

One of three species Japan has targeted in resuming commercial whaling Monday is threatened with extinction, and sub-populations of the other two are severely depleted as well, according to experts.

Y chromosomes reveal population boom and bust in ancient Japan

Researchers at the University of Tokyo conducted a census of the Japanese population around 2,500 years ago using the Y chromosomes of men living on the main islands of modern-day Japan. This is the first time analysis of ...

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