Scientists Count Gray Whales Following Unusual Spate of Deaths Last Spring.

It's one of the great migrations on the planet. Each winter, gray whales swim south from the Arctic to Mexico to rear their calves before turning around in spring and heading north again.

https://www.kqed.org/science/1956362/scientists-count-gray-whales-following-unusual-spate-of-deaths-last-spring

Publicado el febrero 3, 2020 11:59 TARDE por biohexx1