Yes, they do have to be kept warm, but not necessarily by a sitting mother. A nesting goose or duck will get up at least once a day to leave the nest for a swim, get something to eat or just a stretch. The time she spends away from the nest is not long and usually she covers the eggs with a layer of down to keep them warm.
In the case of Canada Geese, when the mother does leave the nest for a break, the father is often close by standing guard to stop any prediators from attacking the nest.
yes
no because it has to be warm to hatch:)
A larva,then a caterpillar, then it goes into the cocoon, and finally into a beautiful butterfly.
a blue morpho butterfly lays egg and they will hatch in 2 weeks
A Monarch lays eggs, and an egg will hatch into a caterpillar.
In the natural life cycle of a butterfly, the egg comes first. A female butterfly lays eggs on a host plant, which then hatch into caterpillars that eventually undergo metamorphosis to become a butterfly.
If it's kept warm yes
u make it very warm and then cool it it should hatch in 3-6 days
some slugma have effect warm body it helps eggs hatch
you rap a blanket over it.
No. Chickens are warm blooded birds. Just like any warm blooded creature (e.g. humans), if they stay too cold for too long, they will die. If the egg is cold, the chick will die before the egg can hatch. That's why hens sit on their eggs to keep them warm.
Well since I have a Bobwhite Quail egg at home, when it is dead it is cold even when it has been in an incubator. When it is about to hatch you will hear peeping inside the egg. If it is alive than it will be warm. To keep it warm and alive you have to turn the egg 3 times a day. It takes about 23 to 24 days to hatch if you have cared for it correctly. However it may hatch early.
pretty warm. not 100 degres type warm but i would say around 85 degres.