as they all exhibit similar body plans and structures. This is known as embryonic homology, where embryos of different vertebrate species resemble each other due to shared ancestry. However, as development progresses, the embryos begin to diverge and develop distinct features unique to their species.
For example, during early stages of development, all vertebrate embryos have a notochord, pharyngeal pouches, and a tail, which are characteristic of chordates. As development continues, fish embryos develop gills, amphibians form limbs, reptiles develop scales, birds grow feathers, and mammals develop fur and mammary glands. These differences reflect the diverse evolutionary histories and adaptations of each vertebrate group.
Overall, while vertebrate embryos may look similar in the early stages of development, they gradually become more distinct as they develop into their specific adult forms.
During late stages of vertebrate embryo development, the embryos look similar different
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