Fish evolve to tolerate colder temperature in just three years

One thought on “Fish evolve to tolerate colder temperature in just three years”

  1. This may be off topic but I had my doubts on the passage which says,

    Over the past 10,000 years, marine and freshwater sticklebacks have evolved different physical and behavioural traits, making them ideal models for Darwin’s natural selection theory.

    Is this really a great example for natural selection as the report suggests? Is it not an example of generic drift in action?

    Like to hear your thoughts.

    Like

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