convergent evolution & vestigial structures. convergent evolution (comes from the word...
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Convergent Evolution
(Comes from the word “converge”) (“come together” or “meet”)
Produces unrelated organisms that look similar to one another
The same environment will produce similar adaptations in different (unrelated) animals
FishFish MammalMammal BirdBird
Human Vestigial Structures Vestigial structures – something that no
longer does what it was evolved for On humans:
Ear muscles Wisdom teeth Appendix Tail bone Goosebumps
(Vestigial Structures) On animals:
Whales and snakes have leg bones Flightless birds still have wings Animals with non-functional eyes
Vestigial Structures, ContinuedDolphin EmbryoDolphin Embryo
Hind limb “buds”
Polydactyl horse toesPolydactyl horse toes
ManateeManatee