Adaption

... semi-aquatic, then fully aquatic, and then evolved to live in the deep oceans. Early whales all have teeth, not baleen. Baleen was a fairly recent adaption.

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... also actually have the right complexion to protect them from skin cancer. With their noses and lips, it is genetics and may be affected by their adaption of their environment.

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... some migrated to other regions in Africa, to Asia and to Europe. The physical characteristics of these races are a result of mutations and climate adaption after migration. An example is white skin which was a mutation that aided the humans living in colder regions, so that their skin could absorb ...

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... to adopt a more structurally favored shape. Another reason could be somewhere along plant development, cells with this shape gave the plant an adaption whether it be environmental or because of humans choosing these cells (likely due to nutritional content eg larger vacuoles) which lead to ...

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... the very stuff of macroevolution - apparently do not vary, or vary only to the detriment of the organism. (McDonald, "The Molecular Basis of Adaption: A Critical Review of Relevant Ideas and Observations," Annual Review of Ecology and Systematic, 1983 14:93)

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