ANTA01H3 Lecture Notes - Lecture 4: Postorbital Bar, Macroevolution, Microevolution
Document Summary
Events at a higher level (i. e. speciation) Mendel greatly contributed to our understanding of genetics, the mechanism missing in earlier views of evolution. Genetic variability develops through a process that involves protein synthesis, which involves both transcription and translation. Natural selection is one mechanism of evolution, there are other forms, both random and non- random as addressed in this lecture. Evolution can be identified through both macroevolutionary and microevolutionary processes. In human primates, thumb/big toe divergent from other digits. In non-primates lacks opposable thumb/big toe has claws: relatively large brain. Large brain relative to body mass: vision. Improvement of visual features at the expense of the nose. Better at seeing things in 3d in close distances. Critical for seeing cryptic animals and fruits in dense vegetation, unstable objects. All primates eat at least some fruit: current distribution of living primates. Most primates are arboreal living in trees.
