2007-03-06 06:40:04 · 5 answers · asked by circusgirl322 1 in Science & Mathematics ➔ Biology
Flying takes a lot of energy
2007-03-06 06:42:56 · answer #1 · answered by Samantha 6 · 0⤊ 0⤋
Because they are warm blooded. The additional food is used in part to maintain body temperature. Reptiles do not need this since they rely on other means to maintain body temperature.
2007-03-06 06:46:17 · answer #2 · answered by bsandyman 3 · 0⤊ 0⤋
It takes more energy to maintain body heat and still have energy in reserve for hunting, flying, etc.
2007-03-06 06:56:34 · answer #3 · answered by Nepetarias 6 · 0⤊ 0⤋
They are both endothermic (warm blooded). About 1/3 of your daily calorie intake goes to keeping you warm, even more in cooler conditions.
2007-03-06 06:46:54 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Actually, it has to do with their body mass, but you did forget about reptiles (The snakes, crocodiles and aligators often eat prey that are larger than themselves!)
2007-03-06 06:47:22 · answer #5 · answered by Zanie Y 2 · 0⤊ 0⤋