You are sloths — cuddly, lazy, and, oh well, slothful.
All animals (including humans) like to take vacations, so everyone is together at a country resort. We sloths are sitting around, of course, while all the other animals are running throughout the resort. We want to look around, too, and traveling around the resort to pick up tasty leaves would be great — but running around ourselves is just too tedious. All the other animals are having fun, and we want that, too, but...we are so slothful.
And then we have an idea: We'll let ourselves be carried around by the other animals, thus getting around nicely. The other animals have so much energy that they'll even gladly carry us. They aren't slothful! Which of us sloths will be the first to get through the ent. . .