The Australian Outback is home to some of the deadliest, most dangerous animals in the world. Kangaroos may look cute, but they’re much more dangerous than you think. Like all animals, kangaroos can become aggressive if they feel threatened or if they are trying to protect their young. It is important to respect a kangaroo’s space and to give it plenty of room to retreat if you encounter one in the wild.They have strong legs, and if you encounter an aggressive kangaroo, you better back away quickly. You might not have much of a chance, though, since an adult kangaroo can catch up to a human being in no time. They’ll kick you and can inflict some serious injury on a human who gets too close (via Best Life Online).