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Unformatted text preview: Mating rituals/songs Sterile offspring Example of sterile offspring A mule is the offspring of a horse and a donkey Mules are strong, valuable animals but they have 63 chromosomes and cant reproduce Adaptive radiation The rapid evolution of many species from a single species that has been introduced to a new environment Seen most easily on islands, but happens all over In the Hawaiian islands, one kind of drosopholid fly became 500 species 2/9/11 3 Scientific Names Two parts, Latin Genus species Examples: Canis domesticus & Canis lupus Felis domestica & Felis silvestris Tree of Life online site: tolweb.org Phylogenetic tree Branches are new species Branching points are on a time scale Closer branch points = more closely related...
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