because I thought of an older pseudo theory, I bring the main points, which shall support the water-ape-theory, from wiki
- [ame="http://en.wikipedia.org/wiki/Bipedalism"]Bipedalism[/ame] out of water causes considerable problems for the back, knees and organs, while water would support the joints and torso and permit breathing[14][15]
- Humans are relatively hairless compared to great apes, similar to the hairlessness of land-dwelling [ame="http://en.wikipedia.org/wiki/Rhinoceros"]rhinoceros[/ame] and [ame="http://en.wikipedia.org/wiki/Elephant"]elephant[/ame] which both have aquatic ancestors;[16] what body hair humans do have also follows water flow-lines[17]
- Increased [ame="http://en.wikipedia.org/wiki/Subcutaneous_fat"]subcutaneous fat[/ame] for insulation, especially in human infants[5]
- A descended larynx[17][18]
- A hooded [ame="http://en.wikipedia.org/wiki/Human_nose"]nose[/ame], muscular nostril aperture control and the [ame="http://en.wikipedia.org/wiki/Philtrum"]philtrum[/ame] preventing water from entering the nostrils[17]
- Extensive coverage of the skin by [ame="http://en.wikipedia.org/wiki/Sebaceous_gland"]sebaceous glands[/ame][19]
- The requirement of the human brain for certain nutrients including [ame="http://en.wikipedia.org/wiki/Iodine"]iodine[/ame][20] and some [ame="http://en.wikipedia.org/wiki/Essential_fatty_acid"]essential fatty acids[/ame][21] which are most easily found and absorbed in seafood[22]
- Voluntary breath control which allows diving and swimming,[14][23] and a more streamlined shape compared to other apes[17]
- The [ame="http://en.wikipedia.org/wiki/Mammalian_diving_reflex"]mammalian diving reflex[/ame] which occurs when the head is immersed in cold water[24]
- Vestigial webbing between the fingers[25]
- The [ame="http://en.wikipedia.org/wiki/Vernix_caseosa"]waxy coating[/ame] found on newborns[17]
- Certain morphological adaptations within the [ame="http://en.wikipedia.org/wiki/Kidney"]kidney[/ame][26]
If we look to bipedalism, than we must speak about a time, perhaps 6-7 million years ago, because at those days we had already bipede humanids.
The relatively hairlessness might happened millions of years later, perhaps with .... erectus
subcutaneous fat can be explained by the lack of hair and was as well a reservoir for energy
The descendend larynx can be explained as typical mammalian reflex.
A hooded nose have camels as well
The need of iodine and esential fatty acids can be explained by a later habitate which included sea food, perhaps even starting with .... sapiens forms
Breath controll and diving reflex can be explained as preadaption and typical mammalian reflex
The vestigal webbing can be found at humanoid species in early stages of life too. Perhaps humans have it, because they are neoten.
