It's hard to chart exactly when sloths began their journey to viral stardom. Many slothistorians point to Kristen Bell's sloth meltdown, others to this video of a sloth crossing the street to "I Believe I Can Fly."

Gradually brace yourselves because the adorably cute-faced and hauntingly long-limbed Internet sensations known as sloths are experiencing another big moment.

See also: 15 Perfectly Looped Animal GIFs Stuck in Eternal Cuteness

With recent news of Sloth Week taking place this summer, it's about time we got a bit more acquainted with our ol' pal Folivora. We know they're cute, we know they sound like human babies, but how much do we really know about our majestic, lethargic friends — the turtles of the trees?

Below, we've compiled nine awesome sloth facts sure to blow your mind, as slowly as possible.