asked 201k views
4 votes
According to embryology, why do fish and birds have a common ancestor?

2 Answers

4 votes
Onesimilarity is that they having very similar embryo's!
answered
User Ragunathan
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7.5k points
6 votes
fish, reptiles, birds, and mammals have very similar embryos with gill slits and tales, but all but fish get rid of the gills as they mature
answered
User Garpitmzn
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8.6k points
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