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Amnebocytes egg
An egg in which the embryo is protected by a membrane called an amnion. In addition, the egg is covered in a hard or leathery covering
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Neurotoxin
A poison that attacks the nervous system, causing blindness, paralysis, of suffocation.
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Hemotoxin
A poison that attacks the red blood cells and blood vessels, destroying circulation .
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Endothermic
A creature is endothermic if it has an internal mechanism by which it can regulate its own body temperture, keeping it constant.
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Down feather
Feathers with smooth barbules but no hooked barbules.
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Contour feathers
Feathers with hooked and smooth barbules, allowing the barbules to interlock.
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Placenta
A structure that allows nutrients and gases to pass betweens the mother and the embryo.
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Gestation
The period of time during which an embryo develops before being born.
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Mammary glands
Specialized organs in mammals that produce milk to nourish the young.
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