Ancient sloths lived in trees, on mountains, in deserts, in boreal forests and on open savannas. Some grew as large as elephants.

Giant Sloths and Many Other Massive Creatures Were Once Common on Our Planet. With Environmental Changes, Such Giants Could Thrive Again

If large creatures like elephants, giraffes and bison are allowed to thrive, they could alter habitats that allow for the rise of other giants

A sloth in its natural habitat in Costa Rica, where sloth populations have decreased in the past decade, according to Rebecca Cliffe, lead author of the research.

New Research

Amid Rising Temperatures, Sloths’ Slowness May Put Their Survival at Risk

The world’s slowest mammal is at risk of extinction by the end of the century due to their low metabolic rate and climate change

Hoffmann’s two-toed sloth babies need round-theclock care. Once they’re adults, they’ll be microchipped and released back into the rainforest.

Baby Sloths Are About as Cute As You Would Expect

A Costa Rica rescue center offers blankets and bottle-feeding at a nursery for these young animals