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Transparent third eyelid gives underwater protection.
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80 teeth; 40 top, 40 bottom
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Teeth are conical; used for grabbing and holding, not for cutting.
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Young alligators can replace teeth every year or so.
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Mother 'gators will care for their young for up to two years.
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Use feet to swim slow and to keep balance in water; use tail to swim fast
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4-chambered heart
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Integumentary sense organs on jaws, nose, around eyes and on upper palate
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Egg tooth; a toughened bit of epidermis on the tip of a hatchling’s nose, which allows it to break out of its egg; it is absorbed a few weeks after hatching
