Word: lamprey
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Dates: during 1930-1939
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...some lizards and other reptiles and in the larva of the lamprey, the pineal gland is on a stalk (like a crayfish's eyes) and is near the top of the head. Here it has a distinguishable retina and lens. French Philosopher Rene Descartes (1596-1650) believed: "There is a small gland [the pineal] in the brain in which the soul exercises its functions more particularly than in the other parts." Contemporaries agreed...