But since then, they've had some time to really come into their own and acquire some neat adaptations along the way, like the ability to echolocate among toothed whales like orcas and the ability to sing long and far-reaching songs among baleen whales like humpbacks.

It's one of the most spectacular stories in all of evolution.

Obviously, I'm biased.

In terms of the fossils we have actually documenting that transition from an animal that was originally running around on land on four legs about the size of a dog, had little small hooves on the end of its feet.

So because they're part of the artiodactyl group, which includes cows and hippos and things like that.

So it would have looked very, very different to, you know, an orca, for example.

And in the space of about, say, 10 million years or so, they've went from this land animal to something that has to actually live in the sea.

With that being said, let's zoom in to the feature that makes our whales so musical, their ears and infamous songs.