Over the past 50 million years, the Delphinus has evolved and adapted drastically. Dolphins became aquatic, marine-living mammals from the terrestrial, land walking Pakicetus. These mammals have developed and contain positively selected genes that allow the animal to swim, breath and see underwater.
Dec 6, 2019
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The family Delphinidae made its appearance around 11 million years ago, while the bottlenose dolphin emerged only about 2-5 million years ago. Through evolution ...
Apr 7, 2020 · Examining a dolphin's embryology highlights its evolutionary history. Early in dolphin development, both fore and hind limb buds form. While the ...
Aug 16, 2021 · These creatures began to evolve from a four-legged, land-dwelling mammalian ancestor, which had a nasal passage parallel to the palate, more ...