Why Did T Rex Have Such Tiny Arms?
It's easy to assume that every trait - including stubby arms on a terrifying predator - must be beneficial, but the forces of evolution don't really work like that.
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Show Notes
To learn more about this topic, start your googling with these keywords:
- Evolutionary Mechanisms: Forces that change the frequency of genes in populations.
- Natural Selection: The process whereby traits that make animals more likely to survive and reproduce take hold in a population.
- Vestigiality: The process by which a genetically-determined structure loses some or all of its functionality.
- Genetic Drift: A change in the frequency of an allele due to random sampling.
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