Whaling, terrible for whales, benefited some birds


This 2017 video says about itself:

Blue whales are the largest animals to have ever existed. Learn why they’re larger than any land animal and why they were hunted for years, making them endangered.

Recently, a Dutch book was published, called Een zee van traan • Vier eeuwen Nederlandse walvisvaart, 1612-1964, by Jaap R. Bruijn and Louwrens Hacquebord. It is about the history of Dutch whaling.

The killing of millions of whales was a disaster for many whale species. However, this meant, the authors say, that some other animal species eating krill, small sea snails or other animals formerly eaten by whales might increase. In the Antarctic, some penguin species did increase. In the Arctic, little auks increased.

This 2015 video from the Arctic says about itself:

Big Trouble for Little Birds | National Geographic

Franz Josef Land is home to 50 species of seabirds. One of them, the little auk, has seen a drop in body mass in recent years. Enric Sala and the Pristine Seas team investigate the possible causes to help save the species.

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