Fitness and Selection
Genotypes and Phenotypes
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Convergence, Natural Selection, 'Survival of the Fittest'
Convergent evolution is independent evolution of different species that forms similar features. This can commonly be mistaken for divergent evolution, which is when related species form different features which causes them to split into two species. An example discussed in "Improbable Destinies" chapter 1 was how marsupials and mammals are evolutionary distinct but have multiple counterparts that look similar. I chose to depict the sugar glider and flying monkey in my depiction but the chapter also discussed marsupial mole-mole, wombat-groundhog, quoll-wildcat, and thylacine-wolf. These animals look identical to one another but one is placenta bearing and one has an external pouch. This convergent evolution could possibly come from the fact that geologically the pouch bearing animals tend to have shorter gestation periods or that they are not able to provide enough nutrition to the growing marsupial without it being outside of the womb. Since mammals have longer gestation p...
Species, speciation... and definitions
I absolutely love what you did with this! I hope this is your project because it is a great idea and looks so neat and organized. Great job with your illustrations and definitions!
ReplyDeleteExcellent job! I appreciate your newspaper format. It was a great way to tie in reproductive fitness, a comparison/contrast of the two different types of fitness, and how positive selection is relevant (with, in this case, the blue color trait). Great post!
ReplyDeleteI loved the newspaper layout! It definitely made your post so fun and engaging! I also think your definitions of absolute fitness, relative fitness, and positive selection were great! They were concise but explained very well.
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