Sleep is a difficult problem for dolphins because dolphins

Sleep is a difficult problem for dolphins because dolphins .

Explanation:

Sleep of unihemispheric slow waves: When the dolphins rest, only one hemisphere of their brain loses consciousness, so they only close one eye, the left eye closes when the right half of the brain sleeps, and vice versa. Meanwhile, the remaining cerebral hemisphere is responsible for monitoring breathing.

The answer is: Because dolphins only close one eye when sleeping.

the language of nature was a manifestation from god as he said "let there be light" and there was light the world began to assume visible, comprehensible form.

what ever we know now think of the old vision of creation we can be sure that with out the speaking of word -without language- we would have no science today with its striking power to illuminate the world.