From rats that boggle their eyes with happiness to skunks that do welcome-home dances, these unconventional companions might ...

But in an effort to create an even more maneuverable drone platform, a group of South Korean researchers have studied adding flying squirrel tech to quadcopters.

Although a flying squirrel appears to fly, in truth it is only gliding. Bats, on the other hand, are the only mammals in the world that can actually fly and control their flight.