Originally Posted by jaguartx
Oh I passed Comparative Anatomy. It never revealed if some of the sharks gill arches became part of the middle ears hammer, anvil and stirrup at the same time the shark coincidently developed salamander legs to advance itself enough to travel on or in land. I would think being able to swim and eat stuff in the ocean would be preferable.

Iirc, didnt a couple of shark gill arches become mans jaw bone or mandible? Where the hell did the sharks jaw bone go? wink

Wow! Sorry man, but you are thoroughly confused on this subject. You've clearly never actually studied biology, or any of the related fields. This stuff is all available for anyone who's authentically curious.

For starters, watch the series I provided on this thread.

Here: