How to express your thanks in numerous different languages, and how to reply when someone thanks you.
Report Abuse. Namaste Ramesh. Lions sleep 20 hours every day. Male lions sleep up to 20 hours per day (with one eye open so to speak.) While the females are the hunters the male lions don't and their job is to protect the pride (their harem so to speak).
While cows need relatively little sleep, giraffes sleep even less. On average, an adult giraffe sleeps just 1.9 hours per day. On the opposite end of the spectrum, brown bats sleep for 19.9 hours per day, giant armadillos sleep for 18.1 hours per day and North American opossums sleep for 18 hours per day.