Bird Populations In Decline, Real Life Sci-Fi Disasters, Brain Wiring. Sept 20, 2019, Part 2
Sep 20, 2019
47:18
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There may be almost 3 billion fewer birds in North America today than there were in 1970, according to a study published this week in the journal Science. The decline over time works out to a loss of about one in 4 birds. However, the decline does not appear to be evenly distributed.