why do flies spin on their backs



Unlikely, as a fly's normal lifespan is too short for the accumulation of genetic errors from replication which are required for cancer to develop. After molting somewhere between six and 15 times, a dragonfly nymph is finally ready for adulthood and crawls out of the water to shed its final immature skin.. This process takes several hours or days as the dragonfly expands to its full body capacity. These newly emerged dragonflies, known at this stage as teneral adults, are soft-bodied, pale, and highly vulnerable to predators. Ideally regardless of club head speed you dont want to be over 2500 rpm. DOI: Weale R, et al. Learn more about Stack Overflow the company, and our products. Can I tell police to wait and call a lawyer when served with a search warrant? Green darners, for example, fly south each fall in sizeable swarms and then migrate north again in the spring. DOI: Katzman WB, et al. Just my 2 cents. Hadley, Debbie. Why would you burn coal, then turn the carbon dioxide back into "coal"? Yale neuroscientists may have found some answers by studying the responses of fruit flies. A dessicated fly doesn't weigh much, I'd guess simple house drafts could flip them, and once flipped, they are much harder to reflip, since the wings are now flush with the surface they are on