評論
打印
The results reveal the extraordinary effect
實驗結果揭示 烹煮過的食品
that cooking food has on easing its way through the snake's body.
確實更易被蟒蛇吸收 并產生重大影響
So when we feed the python a ground, cooked steak
我們發現消化攪碎后的熟牛排
we find that the energy expended on digestion assimilation
所消耗的能量 比消化未加工的生牛排
has decreased by 24% compared to the intact, raw steak.
所消耗的能量少24%
The figure has huge significance.
這個數字非常重要
It shows that eating cooked food reduces by a quarter
它告訴我們 吃熟食比吃生食
the energy required to carry out the process of digestion.
消耗的能量要少四分之一
Professor Wrangham claims that this extra energy
朗漢教授稱這些多余的能量
caused the dramatic adaptations in Homo erectus.
使直立人發生重大適應性變化
Cooking made our guts smaller.
烹飪使我們的腸道變小
Once we cooked our food,
我們烹飪食物后
we didn't need big guts,
就不需要大腸胃去消化
and big guts were a disadvantage...
大腸道對于我們很不利
they're costly in terms of energy.
它們消耗的能量較多
So those individuals that were born with small guts
那些生來具有小腸胃的個體
were able to save energy and therefore have more babies and survive better.
才能節約能量 從而生育更多后代并活得更好
