ANTHRBIO 166 Lecture Notes - Heritability, Meiosis, Colobinae
10 Apr 2014
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Document Summary
2 properties define species: reproductive isolation, overall appearance, members of the same species generally look like each other and mate with each other, trophy hunting acts as a selective agent, 40% of all rams are harvested per year (57 males, hunted for their horns, most are shot before they"re 8 years old, rams are selectively hunted based on horn size, analogous features, the wings of bats, birds, and insects, homologous similarities, the vertebrate pendactyl limb, frogs, lizards (reptiles), birds, & humans, genetic code is universal, vestigial structures, whales have similar bone structures to those of vertebrates, anatomy of modern forms suggests order of evolution, fish > amphibian > reptiles > mammals, gills > gills + 4 legs > gills lost > 4 legs > 4 legs, fossil records support this, fossil ankle bones reveal a clear evolutionary relationship between whales and ungulates, tetrapod features (tiktaalik, flat head and body, eyes on top of skull, neck able to move.
