Here's another cool tidbit of fact from the BBC Series Life in Cold Blood by David Attenborough: a gecko that begs a sap-sucking insect for some honeydew!
The day gecko, which lives in the forests of Madagascar, has been recorded begging a bug for its dinner.
The lizard repeatedly nods its head at the insect, called a plant hopper, until it flicks over small balls of honeydew for the gecko to dine upon.
It is not yet understood why the insect so willingly offers up honeydew at the lizard's behest.
Some believe that the presence of the hungry geckos may keep other predators away from the insect.