Why don't birds fall of trees when they sleep?

Answer 1

Because, although the trees emit carbon dioxide during the night as part of their respiration function, the percentage of the carbon dioxide in the air never reaches a dangerous level, or even discomfort level. Let's not forget that the trees are in open air with sufficient oxygen always present, not in greenhouses or closed rooms.

Answer 2

It's called "sleep paralysis"; the brain keeps the body from physically acting out activities in dreams, or moving very far in our sleep. Sometimes it doesn't work, and we wake up in the middle of acting something out, or do things while we're actually asleep. (An extreme form of that is called somnabulism, or "sleepwalking".) It is also possible to roll over in the wrong direction, and fall out of bed.

Answer 3

Birds can fall from the sky for many different reasons, the most common being, a change in the enviroment, possible pollution or change in their nutritious intakes. Although for the recent bird deaths scientists theorize that this is the works of a ozonal layer, or mesopause hail storm.

Answer 4

When a bird lands on a branch, the weight of the bird's body puts pressure on a tendon that clenches the bird's foot. It is actually more effort to take off from the branch then it is to stay on.

Answer 5

This is because the CO2 produced by trees during respiration is extremely less; we have more CO2 in our own rooms at night than that produced by trees. And, a little more inhalation of CO2 doesn't really matter.

Answer 6

becouse they hold whit thier sharp claws so in the night their claws still work so thats why they dont fall if you need any more questions go to kionastroobants@Yahoo.com and emial me if im not there ok bye

Answer 7

There feet are very strong so they won't fall when they sleep.

Answer 8

One's not alive and the other is.

Answer 9

Because you smell bad.