https://imgshare.io/image/verhaegen1985.NnU1uX
The illustration is still correct (of course bald) - after >35 years... :-)
1985 Med.Hypoth.16:17-32
"The aquatic ape theory: evidence and a possible scenario"
Much more than other primates, man has several features that are seen more often in aquatic than terrestrial mammals:
nakedness, thick subcutaneous fat-layer, stretched hindlimbs, voluntary respiration, dilute urine etc.
The Aquatic Ape Theory states that our ancestors once spent a significant part of their life in water.
Presumably, early apes were plant & fruit eaters in tropical forests.
Early hominids also ate aquatic food; at first mainly weeds & tubers, later sea shore animals, especially shellfish.
With the Pleistocene cooling, our ancestors returned to land and became bipedal omnivores & scavengers & later hunters of coastal & riverside animals.
The last sentence is probably wrong: I now think:
early-Pleistocene we evolved
- from aquarboreal hominid (bipedal vertical wading + climbing)
- to shallow-diving "archaic" Homo (+-no climbing any more).
The last senetence should be:
"Late-Pleistocene H.sapiens returned to the land, and became bipedal omnivores & scavengers & later hunters of coastal & riverside animals.
Google
"coastal dispersal Pleistocene Homo PPT"
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