Explain How do you think we could trace back the evolution of organs within our body by hundreds of millions of years
Assignment: Stereo Vision BIO 240

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Consider the human eye, an exquisitely adapted organ that gives rise to stereo vision in full color (see, for instance, “The Evolution of Primate Color Vision” by Gerald H. Jacobs and Jeremy Nathans, Scientific American, April 2009 issue, pp. 56-63).
Explain, strictly from within the framework of Darwinian evolution, how natural selection “crafted” such an organ

BIO 240 Week 4 Discussion 2

How do you think we could trace back the evolution of organs within our body by hundreds of millions of years – from our reptile ancestors – by examining coevolution patterns and fitness landscapes?

Discuss, for instance, the “missing link,” Tiktaalik, that has made headlines around the world (see “Your Inner Fish” by Neil Shubin).

What kind of selection pressures could have been at work here, based on species adaptations, climate changes, and shifting landmasses?

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