[Maceman]

Have you noticed that only the fully aquatic cetaceans have shed their body hair?

If I recall correctly (I haven't read Elaine Morgan's book since 1969), she makes the point that other semi-aquatic animals, such as hippopotami, have also lost most of their hair.

Besides, we have not completely lost our hair -- certainly not to the point of dolphins and whales. Moreover, the hair that remains on us grows in patterns that are more consistently found in aquatic mammals that still have their hair. This pattern tends to follow the flow of water over the bodies of a forward swimming animal.

Now here's one for you -- how come none of the other primates cry salty tears, which is something only associated with aquatic mammals?

[Sabertooth]

Moreover, the hair that remains on us grows in patterns that are more consistently found in aquatic mammals that still have their hair.

What aquatic mammals have hair primarily on their heads, armpits, and pubic regions?

Now here's one for you -- how come none of the other primates cry salty tears, which is something only associated with aquatic mammals?

I don't know. Do otters have salty tears?

Are their non-aquatic non-primates with salty tears?

There are a lot of things different about humans. Our hairlessness, our pronounced sexual dimorphism (pendulous breasts on non-nursing females), our brains, our posture, the lack of a penile bone in males (other primates have them), the helplessness of our babies, our relative physical weakness, etc... and we don't have a lot of the answers as to why these things are the way they are.

But we also don't have a single fossil of an aquatic ape.