Re: New Savanna Man from China 2 mya




Op 18-11-2007 14:33, in artikel onf0k3dh5uj5hf06oel1hn815i8194mpgv@xxxxxxx,
Gerrit Hanenburg <G.Hanenburg@xxxxxxxxxxxxxxxxxxx> schreef:



My boy, does the evidence say "swamp swamp swamp" or "savanna savanna
savanna"?
Taxa Lifestyle and habitat
Pila ovata Air-breathing, shallow-water swamp snail
Claria sp. Shallow-water catfish
Clarotes sp. Catfish
Hydrocynus sp. Shallow- to deep-water fish predator
Synodontis sp. Shallow-water spiny catfish
Varanus niloticus Scavenging and often aquatic lizard
Trionyx sp. Soft-shelled freshwater turtle
Pelomedusidae spp. Smooth-shelled water tortoise
Metridiochoerus sp. Grazing pig
Hippopotamus aethiopicus Aquatic herbivore
Hippopotamus gorgops Aquatic herbivore
Bovidae spp. (duiker- to buffalo-sized) Grazing and browsing herbivores
Lepus capensis Grass and herb feeder

And back to square one, the narrow focus on depositional environment.
And that still requires an explanation of the presence of an open
savanna taxon like Lepus capensis.
However, looking beyond the depositional environment through the taxon
list of the Natoo Member one notices a variety of ecological guilds,
indicating a rather varied environment.

Hippo, reeds, 3 spp of catfish, swamp snails etc. = savanna for savanna
believers. Those fools call everything savanna.

Seasonal is well possible, I have no idea, but the Boy was there when the
marsh was there, in agreement with the comparative data.

The morphology of Homo erectus is unique and in that combination has
no equivalent in any (semi)aquatic taxon.

No, no: analyse, divide it into more elementary units.

Yeah, like a sliding tile puzzle and then move the pieces where you
like 'em and forget about the integrated nature of the organism.
In that case you can pick whatever suite of comparative taxa and
characters you need and amalgamate it into a chimera. That's
comparative evidence a la Verhaegen.

My little boy (you're becoming more & more childish), never heard of
genetics? Crossing over? Genes? Recombination??

An appeal to the molecular level does not help your case as there is
quite some distance between genetics and the way natural selection
acts on populations through the environment.

You don't understand a word of biology & selection.
Nat.selection works on combinations of genes.
Not on populations, my boy.
Never heard of Dawkins?

My little boy, if all mammals that are furless & have a lot of SC fat spend
a lot of time in water, only stupid fools postulate that human ancestors
used to run over dry savannas.

There's not 1 argument that contradicts that our ancestors have always been
waterside, in savannas & everywhere.

Man is the opposite of a savanna inhabitant. Humans lack sun-reflecting fur
(4) but have thermo-insulative subcutaneous fat layers, which are never seen
in savanna mammals. We have a water- and sodium-wasting cooling system of
abundant sweat glands, totally unfit for a dry environment (5). Our maximal
urine concentration is much too low for a savanna-dwelling mammal (6). We
need much more water than other primates, and have to drink more often than
savanna inhabitants, yet we cannot drink large quantities at a time (7-8).
The fossils of our hominid ancestors or relatives are always found in
water-rich environments.


Tell me, where's the shoreline that connects Koobi Fora to Dmanisi?

Well?

No me who asked that (>>>?).
Inform. This question has been aswered a few times.
Again:
- Stingrays in Turkana 1.8 Ma = marine connection.
- Dmanisi: Black+Caspian Seas were conected c.1.8 Ma (never heard of plate
tectonics?). Nothing excludes marine connection then. If not, no doubt
along river.

.

Relevant Pages

  • Re: New Savanna Man from China 2 mya
    ... Pila ovata Air-breathing, shallow-water swamp snail ... Shallow-water catfish ... Hippopotamus aethiopicus Aquatic herbivore ... savanna taxon like Lepus capensis. ...
    (sci.anthropology.paleo)
  • Re: New Savanna Man from China 2 mya
    ... Pila ovata Air-breathing, shallow-water swamp snail ... Shallow-water catfish ... savanna taxon like Lepus capensis. ...
    (sci.anthropology.paleo)
  • Re: New Savanna Man from China 2 mya
    ... Pila ovata Air-breathing, shallow-water swamp snail ... Shallow-water catfish ... What were catfish doing in the dry savanna? ... is normally found in open dry savanna, ...
    (sci.anthropology.paleo)
  • Re: New Savanna Man from China 2 mya
    ... Pila ovata Air-breathing, shallow-water swamp snail ... Shallow-water catfish ... is normally found in open dry savanna, ... Your arbitrary choice of taxa and characters to construct a savanna Homo is ...
    (sci.anthropology.paleo)
  • Re: New Savanna Man from China 2 mya
    ... But of course the savanna netloons call everything savanna... ... Pila ovata Air-breathing, shallow-water swamp snail ... Shallow-water catfish ... Hippopotamus aethiopicus Aquatic herbivore ...
    (sci.anthropology.paleo)
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