I'm permanently awestruck by convergent evolution. @shunyadragon knows my dilemma.
...I mean the odds of two different species becoming so similar in appearance must be 1 in 50 google. Yet we see it all the time. And there's not enough time in the universe for it to happen twice or 5 times on planet earth. But it does. With "flight", it's like 7 times, *completely* unrelated.
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'must be 1 in 50 google?' ?!?!?!?
Convergent evolution is far too common for odds to be a factor. The determining factor in convergent evolution is the environment, and the opportunistic nature of the adaptive nature of life in evolution.