Wild Kangaroos, Bears Invade Our Cities

Whether it's in a city or a suburb, humans and wildlife will continue to coexist in each other's homes.
2:59 | 08/02/14

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Transcript for Wild Kangaroos, Bears Invade Our Cities
Many of us live in urban areas where we don't expect to encounter dangerous wildlife. But wild animals are popping up on our home turf more than ever these days. On our streets, in our backyards. And sometimes even in our pools. So, whose home is it anyway? We may think we're removed from dangerous wildlife in cities. But whether it's these coyotes staking out the neighborhood, this alligator in a swimming pool, or these bear cubs in a backyard tree earlier this week, that sense of security is often just an illusion. Leopards roam city streets at night. Elephants make themselves at home in gardens. And in Colorado, elk walk about as if they own the town. The leopard is right here. This is a wild leopard in the middle of the city. Reporter: Wildlife expert Boone smith says wild animals understand our behavior just as they understand the behavior of any prey. Just the whole idea of our routines, our timings, our habits. And no different than an animal in the wild understands what their prey is doing, the seasons and how that system works. They understand the same thing. It's just with us. Reporter: The urban landscape is often easier to survive than the wilderness that is normally their home. A black bear can find more calories in a garbage can that a full day of scavenging. In Australia, kangaroos love the lush green of the golf course. But don't always appreciate the competition. The kangaroos learned that quick in times of drought. If they needed those resources, we had created them for them. That was not our intent. We had made some of the best kangaroo habitat there was in Australia. Reporter: In Alaska, bald eagles, a protected species, are thriving in this fishing port because residents essentially provide a daily meal with each day's catch. You see the legs start to hang. And it makes you think twice about where they want to be right now. It's a real thing to folk there's. They had to learn to deal with. You either learn to deal with it or you have to leave, essentially. Reporter: What's the lesson here? Myth says we have to accept that wildlife is always going to be around. We can understand that we do have to go exist. It's not we're going to push everything out and do our own little thing. We have to accept that in this dynamic world, wildlife is going to be there in some form or fashion. Urban jungle premiers this Sunday, August 3rd on nat geo wild.

This transcript has been automatically generated and may not be 100% accurate.

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