approcimatly 21 days
sit on the eggs
yes they do
no males also do it when the mother penguine goes to eat
10000 hours
no because the mother will squash the egg and cause it to die
for 21 or 22 days.
They won't if they go cold, which will likely happen if she leaves the nest, unless the eggs are artificially incubated, instead of the mothers heat, the growing chicks inside will die. It appears mother ducks will leave the nest during the laying phase and as long as it doesn't get below freezing outside, the eggs will do fine!
Usually the mother but sometimes the father so they can both get food.
1 day
No, they do not. The eggs are buried in mounds of organic material (leaves, grass, etc.). Heat generated through decomposition of this material warms the eggs. The mother alligator stands close guard, but does not sit on or otherwise warm the eggs herself. it is right.
Chipmunks do not lay eggs, they are mammals and give birth to live young.
The female kakapo incubates her eggs for around 30 days.