Chickens hatch from eggs. All animals that hatch from an egg must fit into the shell up to the point of birth.
Not always, but in general, the larger the animal, the longer the gestation period.
Gestation is used for animal, but pregnancy use for human.
Gestation vetoes from species to species and usually relates to the size of birth-- the smaller the animal the smaller the gestation
The gestation period of the animal is the time it takes between conception and giving birth. The length of time this takes can have great variety between the species but is usually associated with the size of the animal.
Opossum
the tigers
The duration of I Am Not an Animal is 1800.0 seconds.
The duration of The Animal is 1.33 hours.
Gestation is the pregnancy of an animal. In heelers it is usually 56-72 days.
it is different for every animal
kangaroo