Which is a characteristic of spider monkeys?

I thought they were called spider monkeys because you can use the web to learn about them!

When we visited Costa Rica, we encountered a spider monkey rifling through our bag. It was a Kodak moment until he started throwing out our dirty clothes—including underwear! We think it was trained to look for valuables.

This concept of things evolving away because they are not needed is interesting! Can we sign politicians up to it?

What a graceful creature!

Spider monkeys do actually have vestigial thumbs.