As if tool-using crocodilians weren't terrifying enough...the journal Herpetology Notes reports that (at least) five species can climb trees.
The beasts not only shimmy up leaning trunks, but scale vertical ones, too, to heights of over 30 feet. And they can even go up brick walls!!!
The only consolation is their climbing prowess decreases as they grow in size.
Wow. Just wow.
I dunno if anyone remembers Gamma World's Mutant Manual II article from Dragon Magazine #108 (wayyyyyy back in 1986)...
...but it featured a race of 7-inch-tall arboreal alligators known as screps.
Screps were highly intelligent and gregarious, and possessed manipulative feet plus, and I quote, "tails...almost as prehensile as those of spider monkeys."
DRAGON PREDICTED THE FUTURE, Y'ALL.