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Gr 8 Up—The manner in which various animals mate and reproduce is varied, at times bizarre, and, in this exploration of the topic, downright fascinating. Downer begins by describing the mechanics of animal sex. Some reproduce via internal fertilization (the genitalia of male and female partners fit together, enabling the male's sperm to fertilize the female's eggs), and others reproduce via external fertilization (eggs are fertilized outside the female). Hermaphroditic animals have male and female sexual organs and are capable of mating wit...Log In or Sign Up to Read More

A thorough introduction to the diverse range of sexual behavior in the animal kingdom, this informative text covers a staggering variety of species'...Log In or Sign Up to Read More