Suction caps on their feet. To me the real magic is how they land upside down. I found the answer though some research. "On approaching the ceiling, and while still flying right side up, flies extend their forelegs over their heads till they can grab a landing spot with the suction caps in their feet. Their momentum then enables them to swing their hind legs up, like a gymnast on a trapeze."
However, MSNBC reported (related link below) that:
Scientists once thought that the curved shape of the hairs suggested that flies used them to grip onto the ceiling. In fact, the hairs produce a glue-like substance made of sugars and oils. A research team from the German Max Planck Institute for Metals Research recently studied more than 300 species of wall-climbing insects and watched them all leave behind sticky footprints. Team leader Stanislav Gorb presented the findings at the Annual Meeting of the Society for Experimental Biology in April.
It was found that aforementioned meeting was at University of Kent at Canterbury Monday 3rd - Friday 7th April 2006.
gecko
flys
Because there trying to eat your food. becausethe food is warm
birds walk on them but the flys dont dont like it get a different answer
Geckos have billions of invisible hairs on the bottoms of their feet. These hairs are called spatulae and they work sort of like Velcro. This allows them to walk up walls and across ceilings. The more humid the air, the stickier the hairs get.
flys medium flys flys medium flys
i think your talking about flees not flys flees. and the can't hurt you but they can get in your hair and skin and make you very itchy
flys and other bugs flys and other bugs flys and other bugs flys and other bugs
yes flys are invertabrates
How Time Flys was created in 1973.
Flies have pulvilli, which are adhesive pads on their feet that allow them to walk upside down on ceilings and other smooth surfaces. These pads have tiny hairs that create a capillary action, enabling the fly to stick to surfaces due to the van der Waals forces between the pad and the surface.
flys and horse flys