Why are sloths so slow and lazy?

Related questions

1. Are sloths legal to own?
2. Is it legal to own a sloth in Kentucky?
3. Do humans eat sloths?
4. Can you pet a sloth?
5. Can sloths be pets?
6. Do sloths carry disease?
7. Why do sloths sleep so much?
8. Do sloths carry diseases?
9. Do sloths carry leprosy?
10. Why are sloths upside down?

Tags

1. #creatures
2. #moving
3. #sloths
4. #adopt
5. #kingdom
6. #energy
7. #ecology
8. #always
9. #almost
10. #unequivocally
11. #principal
12. #unusual
13. #requires
14. #slowly
15. #animal
16. #underlies
17. #measured