posted on Jun, 12 2003 @ 08:05 PM
Dolphins aren't just fish who stayed in the ocean while our ancestors emerged onto land. They were once four legged mammals that, because they lived
around the shores of the oceans, like sea otters today, gradually evolved to become a fully sea going mammal.
The technicality about them being mammals is important because it means that they posses the larger, more developed brain of a mammal.
Now, I've read that the dolphin brain is larger, in proportion, to its body than even the human brain, but that this extra, realitive size is
dedicated to a larger visual cortex... the 'thinking' parts of their brains are not larger than our own.
But thinking isn't just a matter of raw brain size. In reality, they may be nearly as intelligent as humans, but, as their environment, 'society',
and biology is different than ours, their 'minds', that is, the very worldview that they live in, would be considerably different than ours...
Simply put, they might not perceive space and time the way we do. .. so, there may not be a way to directly compare our intelligences.
Still, I imagine that, as they seem to have a form of intelligent communication, that they may have a 'culture' of some sort.
As for ET's being their descendants, I think that it *may* be possible that ETs descended from an ancestor held in common with them-- most likely
their still amphibious forebears (I'd speculate more, but I wouldn't want Byrd to make me look dumb).