Question

Why do the animals swallow the food and it comes mouth and it chews

Answer 1

Answer:

all animals don't bring back their food back in their mouth.... only grass eating animals bring back... as they store all the grass in their 1st stomach and bring back the grass to the mouth and then send it to its 2nd stomach....

Explanation:

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Answer 2

Those animals are called ruminants

Explanation:

While eating they partially chew leaves and grasses and during their free time they will chew it completely. The food brought back is called as cud