Incubator .
yes, wood is an insulator so it keeps things warm.
There are a wide variety of lizards that are known for covering their eggs with dirt. This helps to keep the eggs protected from predators and keeps the eggs warm.
Both the male and the female do. The parents of the eggs share the setting keeping the eggs warm. They both share in the raising of the chicks once they hatch.
The mother usually keeps them warm... but mostly all the sticks and feathers and stuff keep them warm kinda like a blanket!
Snake and Lizard eggs are usually buried in decaying plants. The decaying plants give off heat which keeps the eggs warm.
It keeps the eggs warm so it will hatch if the egg is fertilized. Mostly you won't need it, only if your hen refuses to lay on the eggs.
yes, they do. it keeps the egg warm for the time being.
what keeps penguens warm
a monkey keeps its self warm by its amount of fur
Well, you HAVE to put them in an incubator or they won't survive. An incubator keeps them warm, I suppose that you could MAYBE do something to keep them warm, but I doubt it.
the male penguin keeps the baby warm be tween his legs
they have several layers of feathers and they have feet covered in feathers to keep warm