amniotic egg - a shelled egg that contains a thin membrane that forms a closed sac about an embryo or fetus of a tetrapod vertebrate (reptile, bird, or mammal). Allows these animals to complete their life cycles on land.
This chicken's egg is an example of an amniotic egg. A chicken is an amniote, and its eggs have the membrane mentioned above. A chicken lays its eggs on land.
Date: 8/15/12
Time: 10:54 a.m.
Place: My house
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