At four weeks, a kitty named Marshmallow weighs about one pound. While that might not sound like a lot, it constitutes a whooping seven times her birth weight of 2.3 oz.

While her owners weren't sure such a tiny kitten could survive, Marshmallow is a fighter. At first she wasn't able to regulate her own body heat, due to her low birth rate. But now, she no longer needs to be treated with a heat pad when mamma cat isn't around to snuggle her for warmth.

Marshmallow is also beginning to walk around like any kitten would, and loves interacting with humans. Which is probably a good thing, because after one look, most people can't help but interact with her.

The wee feline's diminutive size really gets driven home when she's dwarfed by the slipper she's playing in. Or, as they say, one man's Croc is a tiny cat's kingdom.