These Puppies Are Friends With All Kinds of Animals

Puppies have an uncanny knack for breaking down the boundaries around them.

Some of these pups' new pals are hardly surprising. A monkey, for example, isn't too hard to make friends with (just wander around YouTube if you're curious). However, puppies have also managed to crack through the seemingly impervious shell that separates their kind from cats. Now that's a bit more impressive.