|
Chararacteristics |
Humans |
Apes | Savannah | Aquatics |
| Habitual Bipedalism | Yes | - | - | - |
| Loss of body hair | Yes | - | Yes | Yes |
| Skin-bonded fat deposits | Yes | - | - | Yes |
| Ventro-ventral copulation | Yes | Yes | - | Yes |
| Dimunition of apocrine glands | Yes | - | - | Yes |
| Hymen | Yes | - | - | Yes |
| Enlarged sebaceous glands | Yes | - | - | Yes |
| Psychic tears | Yes | - | - | Yes |
| Loss of vibrissae | Yes | - | - | Yes |
| Volitional breath control | Yes | - | - | Yes |
| Eccrine thermoregulation | Yes | - | - | Yes |
| Descended larynx | Yes | - | - | Yes |
The Aquatic phase took place more than 5 million years ago. Since then, Homo has had five million years to re-adapt to terrestrial life. It is not surprising that the traces of aquatic adaptation have become partially obliterated and have gone unrecognized for so long. But the traces are still there as the table indicates.
The "Yes" in column 3 refers to the bonobo; in column 4 the rhinoceros and the elephant.