Everyone's agreed that sloths are the cutest animals ever. Sure, we might be generalising but if Kristen Bell loves them (and we love Kirsten Bell), then we reckon we can make such a bold statement.
Filmmaker, photographer and zoologist Lucy Cooke also loves sloths. So much so in fact, she's written a whole book about - The Power of Sloth - which is set to be released later this month.
To celebrate, she created this incredibly cute video of sloths squeaking, which has gained over 1.25 million views in less than a week.
In the video, you can see sloths ambling around the AIUNAU (a non-profit foundation for the protection of wildlife) and Aviarios sloth sanctuaries in Colombia and Costa Rica.
Cooke studied at Oxford University under Richard Dawkins and is a National Geographic explorer, TV presenter and award-winning filmmaker. She's also a New York Times best-selling author, journalist and blogger with a background in zoology.
Her first book was called A Little Book of Sloth, and was published last year. She also created a video titled Bucket of Sloths, which also went viral.