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This is Scientific American 60 Second Science. I'm Emily Schwang.

Somewhere in this forest you hear there are sloths. Those sloths live in Brazil's

Atlantic Forest. If you're a tourist watching sloths isn't that exciting, but if you're a scientist, well it's also not that exciting,

but there's a big upside.

And so they actually have great study animal for the wild because you can collect a lot of data on them.

Giles Duffield, a biologist at the University of Notre Dame who studies circadian rhythms.

I mean, the ecology work that I used to do several years back in Bolivia was was focused on bird

Conservation bird ecology and you know you'd see some parrots and you'd make some notes and then they were gone you wouldn't see them again for another 24 hours.

But Duffield and colleagues now collect data on the brown-throated three-toed sloth in the Atlantic forest.

Duffield says the sloths can stay in sight or even in the same tree for nearly 24 hours.

The animals are at rest anywhere from 75 to 90% of the time. But they're coping with a damaged ecosystem.

The suggestion is 98% of that

the forest has been depleted. There's obviously roads cutting through these areas of the forest and

and it means the population of fauna and flora is depleted.

...