When I got intel from the Negev Desert about a group of animals finding new ways to survive their home being baked to a crisp... well, I knew we had to go and see it.

[Birds chirping] Here in the desert, rising temperatures mean droughts last longer, heat waves are more intense, water sources are drying out, and valleys are turning to dust.

[Bird squawking] [Fly buzzing] The next generation of these Nubian ibex must learn a new way of making a living here.

♪ It starts with a big climb for a little goat.

♪ Usually, a mother would take her kid into the valley to find something to eat.

But in the last 30 years, some of the Negev has lost 2/3 of its vegetation.

And temperatures have risen by 3 degrees.

So, the residents of this desert... have no choice but to become migrants.

These ibex are heading up... and out.

[Bird squawking] When the chips are down, sometimes you just got to head to the city.

[Dog barking] Settlements like this one are made possible with technology that allows over a million people to now call the desert their new home.

An opportunity to be exploited... if you dare.

Ibex were hunted to near extinction just a few decades ago.

So, when you think about it, this mom must overcome a fear of humans handed down over generations.

They're nervous, but times are desperate.

And she leads her kid on into a strange oasis.

♪ They stay long enough to get their fill... and quickly return to the sanctuary of the desert.

Now, there's a twist to this story.

The picture changes as you move from one desert town to another.

♪ In the older, larger settlements-- where there's more people-- the ibex are becoming more accustomed to our human world.

♪ Here, the ibex are no longer sneaking around.

♪ They're owning this place.

♪ [Horn honking] ♪ They've changed their behavior so radically... they've pretty much moved in.

♪ [Dog barking] ♪ They seem to have lost their innate fear, and they're happy to adopt all the trappings of city life.

♪ They're now as much at home here as the locals.

♪ Everything is fair game.

♪ [Car alarm sounding] ♪ [Laughing] So, remind me not to park here.

♪ Researchers are finding that ibex here are becoming bolder than the ibex in the first settlement we visited.

♪ And the more they stay in town, the more they become isolated populations, changing--even at the genetic level.

We know that animals all over the world are adapting to life in the city.

So, who knows where this'll take them?