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13 Nov 2018

There is a population of speckled rattlesnakes living in the desert of Arizona. Individuals in this population can range from a dark brown coloration to a speckled white coloration. There are also two types of rock formations in this area: one with high quartz content (white) and table mesa sedimentary rocks (brown). Because of these two types of prominent rock outcroppings, only rattlesnakes at either end of the coloration spectrum are able to sufficiently camouflage themselves to avoid predation. Because of these, individuals with intermediate coloration are unlikely to survive and reproduce. This is an example of:

-Disruptive Selection

-No Natural selection

-Directional selection

-stabilizing selection

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13 Nov 2018

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