Wednesday, July 25, 2012

Noisy Nookie Makes Flies Bat Food

60-Second Science60-Second Science | More Science

Frisky male flies flutter their wings, producing sounds that bats use to locate the distracted prey. Amy Kraft reports.

More 60-Second Science

How does a Venus flytrap know when to snap shut? Can it actually feel an insect?s tiny, spindly legs? And how do cherry blossoms know when to bloom? Can they...

Read More??

Here?s one way bats might get their next meal: by eavesdropping on flies having sex.

Bats eat a lot of seemingly undetectable flies. To find out how the winged mammals find the insects, researchers set up a video camera inside a cowshed that was home to a bat colony and lots of bugs.

The video showed that bats rely on their echolocation skills to detect flies at a specific time: when they?re engaged in rather noisy sex.

Flies are usually quiet in bat territory and sit on cluttered ceilings in caves where background noise masks the echoes from their movement.

But when flies are feeling frisky, males can?t help but flutter their wings, emitting a burst of click sounds that the bats pick up on. During more than one thousand sexual encounters caught in the act on video, five percent of the insects were caught in the act by bats. The research is published in the journal Current Biology. [Bj?rn M. Siemers et al, Bats eavesdrop on the sound of copulating flies]

The study shows that ignorance can be safer than carnal knowledge when predators are on the prowl.

?Amy Kraft

[The above text is a transcript of this podcast]


Source: http://rss.sciam.com/click.phdo?i=1bd05db41179cbcffd5f069a3464a0d6

huntington disease west memphis three shaun white taxes game of thrones season 2 trailer sag award winners girl scout cookies

No comments:

Post a Comment

Note: Only a member of this blog may post a comment.