Trivia.com
Lobsters have odd anatomy. Their brains are in their throats, their nervous systems are in their abdomens, their teeth are in their stomachs, and their kidneys are in their heads.
Trivia.com
Leonardo studied the flow of blood through the valves of the heart, by creating a mold of a real heart with wax and then pumping water mixed with seeds through a glass caste of it.
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