A population like this couldn't stand too many years with only a couple of animals born into it.

They're an urban whale, really, if you will. They're found near shore near these large, busy ports.

This is an exciting year ... witnessing a population on the brink of extinction exhibit signs that it might actually make it, that it might have a fighting chance.

That's the most poignant thing of our season. There are no whales here to speak of.

This population of right whales is one of the most endangered populations of large mammals anywhere in the world. This is our white rhino. This is our giant panda.