Actually sloths can walk. Two-toed sloths are better at moving quadrupedaly than three-toed.
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They look like this when on all fours. I would say sloths are faster than tortoises, when they want to. Hilarious to watch.
Comeback of giant ground sloths.
This, and those videos, are very interesting. I knew sloths were capable of climbing... well, not quickly of course, but probably more quickly than the average person assumed, but I don't think I've ever seen two-toed sloths walking before. I guess my only prior exposure was seeing clips of three-toed sloths crawling.
I keep going back and forth on sloths in Planet Zoo. Functionally, they could work. Nothing about their movement hasn't been addressed or at least side-stepped by some combination of the koala, tortoises, and siamang. They're obviously a beloved common zoo species. So from those perspectives, I think they should absolutely be included. But then there's the whole matter where arboreal creatures in Planet Zoo aren't
remotely as arboreal as they should be. Seriously, koalas shouldn't be spending the majority of their time on the ground. Even the red panda and binturong and capuchin spend way, way too much time not climbing. So I'm not really feeling getting something that looks like a sloth but doesn't really behave like a sloth, meaning I'd probably use it once and then never again.
I really thought that giving the koala the eucalyptus feeder enrichment item was supposed to be the workaround that kept them in trees more often than not, but that was obviously not the case. I feel like the solution to keeping these animals climbing more often than not can't be
that difficult, all things considered. I just hope that something changes if we do actually get a sloth.