Studies show that the housefly uses a compound called treahlose to give it the energy for flight. The study in the link shows that a housefly allowed to fly for 4.5 hours, when fed treahlose was able to fly again with being forced to, so it appears to depend on its access to this energy source. It also states that flies who did not have access to treahlose were unable to fly after flight exhaustion. I've often wondered how long I'd need to chase a fly around a room before it dropped dead. If it takes 4.5 hours, I don' think I'll bother. It'd probably just land and walk around indefinately... until I squashed it. Read more: http://wiki.answers.com/Q/How_long_must_a_common_housefly_fly_without_resting_in_order_for_it_to_die_of_exhaustion#ixzz24JOdXlE4
z*e
25 楼
本版终于超越了 joke 版成为买买提第一学术大版~
appears it
【在 s********n 的大作中提到】 : Studies show that the housefly uses a compound called treahlose to give it : the energy for flight. : The study in the link shows that a housefly allowed to fly for 4.5 hours, : when fed treahlose was able to fly again with being forced to, so it appears : to depend on its access to this energy source. : It also states that flies who did not have access to treahlose were unable : to fly after flight exhaustion. : I've often wondered how long I'd need to chase a fly around a room before it : dropped dead. If it takes 4.5 hours, I don' think I'll bother. It'd : probably just land and walk around indefinately... until I squashed it.