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Stomach chamber in cows & related animals in which newly swallowed plant food is stored & processed
Outer layer of the cerebrum of a mammal's brain; center of thinking & other complex behaviors
Mammal which bears live young that complete their development in an external pouch (example: Kangaroo)
Organ in placental mammals through which nutrients, oxygen, carbon dioxide, and wastes are exchanged between embryo & mother
Ability to merge visual images from both eyes, which provides depth perception & a 3-D view of the world
Primate that walks upright, has opposable thumbs & possesses a large brain; only living members are humans
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