2006-11-14 01:11:21 · 12 answers · asked by magnum 2 in Science & Mathematics ➔ Zoology
Ruminants, such as cows, can digest cellulose, the major ingredient in things like grass and other plant matter, while we cannot. Cellulose is much like starch, except that it has a different structure of linkage between the sugar units (a 'beta' instead of an 'alpha' linkage.) So basically, it is sort of like giving a human a huge room full of carbs and all the time in the world to eat it...no wonder they get so big! (Of course, they'd need other nutrients, which could be found in grass or other plants--minerals, vitamins, and the like. I also believe they are fed certain types of grain to supplement the grass.)
2006-11-14 01:19:02 · answer #1 · answered by Black Dog 6 · 1⤊ 0⤋
they dont get big BY eating grass - they are big BECAUSE they eat grass, the stomachs of the large animals have to be large ergo the rest of the animal is large too ( you need a lot of blood to feed lots of stomach cells so you need large hearts to pump the blood hence you need large lungs to get the oxygen to fuel the heart etc etc...)
2006-11-14 03:08:40 · answer #2 · answered by dave a 5 · 0⤊ 0⤋
Not all animals get big just eating grass...
I get fat eating junk food and indian/chinese takeaways, as well as both smoking and eating lots of grass!
2006-11-14 01:14:20 · answer #3 · answered by Harrison N 3 · 2⤊ 0⤋
There's a lot of grass out there and they are greedy animals. Enough said
2006-11-14 01:13:08 · answer #4 · answered by SilverSurfer 4 · 0⤊ 0⤋
They have the enzymes for the necessary cellulose digestion which we don`t have.
So for cows, eating a lot of grass is like for as eating a lot of chips!
2006-11-14 01:35:40 · answer #5 · answered by parapligiko A.E. 3 · 0⤊ 0⤋
yea, ofcourse, animals get so big when eating too much grass
2006-11-14 01:14:05 · answer #6 · answered by Anonymous · 0⤊ 0⤋
maybe they extract hidden minerals and vitamins in it or something, but that's a good question, i have a guinea pig that's about as big as a dog, and he eats grass veg and fruit.
strange that...
2006-11-14 01:13:52 · answer #7 · answered by Anonymous · 0⤊ 0⤋
DOGS?
they dont get big from eating grass..
they eat grass to clense themselves. if they are feeling upset the grass will clean them out.
most likely vomit or poo
2006-11-14 01:13:55 · answer #8 · answered by madelaine 1 · 0⤊ 1⤋
The food that they eat has no connection to their size.
2006-11-14 01:43:24 · answer #9 · answered by Siva 2 · 0⤊ 0⤋
Because they eat in huge amount. Example dianosaurs, horse, cows and so on.
2006-11-14 01:14:39 · answer #10 · answered by Cutebunny 3 · 0⤊ 1⤋