Re: Would you like to be fried with that?
Though I'm in the medical field, I'm not yet well-versed in evolutionary theory (in fact, I'm not even sure if it's false or true, and that's because I'm freeing myself from the biases of both traditional creationist and materialistic ends.)
But for the legs of the dolphin, I have read that they do have "modern" uses.
Humans are too proud. They declare organs to be "vestigial" when they simply don't know the use of such organ ... it's frankly both embarassing and impedes scientific inquiry.