A pygmy blue whale, Balaenoptera musculus brevicauda, swims in the Banda Sea, Indonesia. This huge cetacean reaches up to 24 meters in length and makes up to about half of all blue whales alive.© ...

If you liked this story, share it with other people. Many other whale populations aren’t as easy to study, so unsurprisingly we know less about how they’re doing. This is why a recent scientific paper ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Whales are a group of ...