Rodents of unusual size and comfort.

This is a real life hot tub time machine – one that takes you back millions of years, to an era when hamsters the size of pigs roamed the Earth.

Actually, the capybara (the world's largest rodent) still exists in South America. They're not even endangered, despite the fact that they're sometimes eaten by locals and naive tourists.

This video comes from the Saitama Children's Zoo in Japan, where the capybaras like hot tubbing in gross, murky water. It's like they have their own personal cut-rate hotel room! If you're wondering what's floating in there, check out the video's description:

Sources: YouTube