評論
打印
Deep in the southern United States
在南美腹地深處
lies a strange menagerie.
生活著一些異獸
Alligators, tarantulas, geckos...
短吻鱷 狼蛛 壁虎...
Each are playing a role in the exploration of our biology.
它們對我們的生物研究起著巨大作用
But for now, Doctor Stephen Secor of Alabama University
目前 阿拉巴馬大學的史蒂芬·塞科博士
is working with Burmese pythons.
正在研究緬甸蟒
He wants to find out whether they use up more energy
他想弄清消化生食和熟食
digesting cooked or raw meat.
哪種更消耗能量
Snakes, being mainly a head and a stomach,
蛇類主要由頭部和腹部組成
make good subjects for this experiment.
因此是很好的實驗對象
They eat their prey whole
它們把自己的獵物整個吞下
and stay still for up to a week.
一個星期內(nèi)都靜止不動
The only energy expended is in digesting their food.
它們只須要消耗能量去消化食物
We're trying to see
我們想要弄清
if we can find any difference
在消化熟食
in the course of digestion between
和生食的過程中
a cooked meal and a raw meal.
到底有什么區(qū)別
