Tuna sleep in the ocean and keep on swimming during the sleep to avoid suffocation.
They don't sleep BACKWARDS, they sleep hanging upside down from their feet. They sleep like that because they have no other way to sleep as their wings and small feet do not allow them to construct a den or nest.
No. They close their eyes like us when they sleep.
Stick insects sleep on leaves, on twigs, on sticks, or in trees. Some are nocturnal and they sleep during the day.
The expression is : "When you sleep with dogs you get fleas."
mostly mating
The liver
You can see a polar bear in the Arctic.
Not that far since it is so heavy:p
polarbear
baby polar bears are called (cubs).
With it's feet and legs .Are you a 2 year old?
it is 100% sure the polarbear does
Polar bear much bigger and stronger
Enough to break the ice Hi im max
polar bears are internal because they are mammals and all mammals are internal.
that they are aroud 15 polarbear kill ed by people in a year