Humpback whales, orcas off Russia

This 19 November 2019 video says about itself:

In the sea of Okhotsk, off Russia’s eastern coast, two types of whales are making a comeback: humpback whales and orcas. Both are drawn here in the summer to feast on the plentiful herring.

Humpback whales in the South Atlantic have recovered from near-extinction. A new count shows the population off Brazil went from about 450 in the 1950s to 25,000 now: here.