Really. Check out what the BBC says about our one-time balloon-headed neighbor to the seas:
A new type of dolphin with a short, spoon-shaped nose and high, bulbous forehead has been identified from a fossil found in the North Sea.
The Platalearostrum hoekmani was named after Albert Hoekman, the Dutch fisherman who in 2008 trawled up a bone from the creature’s skull.
Up to six metres in length, the dolphin lived two to three million years ago.
Apparently, bottom-trawling nets are scooping up all kinds of weird fossils. Including these guys.
I’m convinced the extra skull structure was a kind of amplifier for telepathic communication. Others believe the head-balloons served as laser mounts.