BlondieBC
Banned
Sounds strange. It implies that early humans were exclusive coast-huggers for a very long time. That sounds recipe for very quick speciation, limited population, and high vulnerability to sea level variation in times where sea levels were probably variating significantly in short times (short in evolutionary times of course).
Also, little in human body seems to be particularly adapted to gather seafood. It's not an argument in itself, but I suppose it helps shedding doubt.
It does not strike me as strange, but I remember the old aquatic ape theory. It tired to explain some characteristics of humans - hairless, no pheromones, we can float unlike chimps, etc. While largely discredited last time i check, we have lots of indication (fossil) that the humans were most dense near water in drier climates (South African Coast, East African Plains by rivers.