February 14, 2009

A Jawful of Ears

Been 'earing a lot of things this week. First off, an article for biologically-challenged physicists about echolocating bats & dolphins that I found from Sep 2007. Evidently, dolphins reverted to the older listen-through-your-jawbone formula - do jawbones work better as acoustic antennas in water ? Those clicks and whistles do a lot more than just find food though. Take a look at this beautiful set of videos from lifeonterra.com: Ocean Acrobats gets both thumbs and both toes up.

Elephants, which of course can never make up their minds about anything (1), pick up low-frequency sounds through their feet and then pass them on to their ears. Now some primates want to use these signals to lure marauding pachyderms to safety: Elephantine Valentine messages ?

Now I've heard of cats climbing trees, but catfish climbing up trees sounds a little ... fishy. Not content with inventing radio communication, some catfish apparently decided to go out on a limb. They're launching satellites next, as you read this.

And, here's Bucky !










--
1) KT, who has often said.