I work as a lifeguard in an outdoor pool surrounded by trees and shrubbery, so when people aren't there, I have alot of time to observe the stuff around me. Some things I've developed questions about are as follows: Where do insects get their ridiculous amounts of energy? I've witnessed tiny ants dragging along beatles dozens of times their own weight. I've observed dragonflies, wasps and bees staying in flight for ridiculous amounts of time, flying must use an insane amount of energy, propelling oneself forward and against gravity. Are insects more efficient at refining energy from substances than mamals are, do they have a better way of using energy, or do they just eat alot when they're not apparent? How can insects breathe underwater? I've seen wasps and flies maintain conciousness/mobility after being underwater for several minutes of being underwater, and then when they come above water, dry them selves off and fly away within a minute or two. Why do wasps continue to move about/seisure after their heads have been removed? Do they have a sort of secondary brain as Dinosaurs did? Do parts of their brains extend beyond their head? I've seen a bird (I believe it was a catbird) swallow a whole beetle which was still living, stand their calmly for a few seconds, hop around for a few more seconds (still looking calm) and then just fly away. First of all, how can a bird swallow a beetle without it experiencing immense pain while the beetle was going down it's esophagous? Do the birds have some mechanism of crushing the beetles inside their mouth (extreme peristalitic pressure in the esophagous?), or do they just have a high tolerance for pain? Secondly, how can a bird digest the chitinous shell of a beetle in order to get the nutrients inside of it? I was under the impression that chitin was pretty much undigestable. Are the insides of the beetle exposed tot he birds digestive system through the same means that the beetle might be crushed?