Originally Posted by KJ
Please provide a source for that claim.
As I understand it you can not be a SEAL if you are not Navy, hence Navy SEALs.
You can however as a Navy corpsman be attached to a Marine unit.
You have to understand the unique relationship between the US Navy and US Marines. Marines are part of the Department of the Navy, hence the term "Navy SEALs".
But here is a source as it applies to SEALs: http://www.navy.mil/management/video...o.aspx?id=2619