Once four-legged land animals, whales evolved from ancestors Pakicetus, which lived along ancient Pakistani shores ...

The blue whale is the biggest animal that has ... unicorn-like tusk is actually a tooth growing through its upper lip. Toothed whales hunt using a method called echolocation.

Check out some amazing footage of blue whales racing in our exclusive clip from NBC's Tom Hanks-narrated The Americas Ep. 9: ...

In the Southern Ocean, blue whale populations are still greatly reduced after intense hunting in the twentieth century. "There's basic things that we don't know about them, like where their ...

The blue whale is the biggest animal that has ever existed ... In fact, the narwhal's famous, unicorn-like tusk is actually a tooth growing through its upper lip. Toothed whales hunt using a method ...

In the Southern Ocean, blue whale populations are still greatly reduced after intense hunting in the 20th century. "There are basic things that we don't know about them, like where their breeding ...

In the Southern Ocean, blue whale populations are still greatly reduced after intense hunting in the 20th century. “ Both blue whales and humpbacks were depleted from hunting, but some humpback and ...

With the next chapter hitting tonight, here's a look at our preview for NBC's Tom Hanks-narrated The Americas Episode 9: "The West Coast." ...

In the Southern Ocean, blue whale populations are still greatly reduced after intense hunting in the twentieth century. “There's basic things that we don't know about them, like where their bree ...