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"Couch potato" bass evolving in response to human predation
Top Stories from NCPR
English - June 11, 2020 04:00 - 5 minutes - 2.32 MB - ★★★★★ - 12 ratingsNews news adirondacks north country public radio Homepage Download Apple Podcasts Google Podcasts Overcast Castro Pocket Casts RSS feed
(Jun 11, 2020) The pressure to keep billions of humans fed can have a transformative impact on amimal populations. Overharvesting that targets the largest animals can result in reduction of the average size of species, as seen in Caribbean conch snails. And sport-fishing pressure on large mouth bass can winnow out the most agressive in the gene pool, resulting in a "lazier," more passive remnant population.
Martha Foley and Curt Stager talk about the human factor in animal evolution.