Op donderdag 6 april 2023 om 00:00:12 UTC+2 schreef
peter2...@gmail.com:
> On Wednesday, April 5, 2023 at 10:45:11 AM UTC-4, marc verhaegen wrote:
> > Op dinsdag 4 april 2023 om 03:55:10 UTC+2 schreef
peter2...@gmail.com:
...
> > > > cursorial tetrapods run/jump on their toes (most carnivores) or hooves (most herbivores),
> > > > they don't have flat feet like we (still) do:
> > > Kangaroos are about as plantigrade as we are, AFAIK, but can hop VERY fast.
> > > Also, bears are plantigrade but can run much faster than we can.
> > - kangaroos hop = ex-arboreal? very unlike human BPism,
> And very unlike orangutan rudimentary semi-BPism. You have no evidence that
> they devolved from true BPism. Nothing like that is evident in Sivapithecus, is there?
What is "true" BPism, Peter?? ostrich? kangaroo? aquarboreal?
> But if they did not devolve, then what are doing closer to humans than to hylobatids?
"devolve"?? orangs?
Pongo was aquarboreal: broad sternum, tail loss, centrally-placed spine etc.
You know my view(?), see my 2022 book p.299-300:
- c 30 Ma India approaching S-Asia formed island archipels = full of coastal forests:
Catarrhini reaching these forests became aquarboreal Hominoidea:
broad build, vertical posture, BP wading, tail loss, climbing arms overhead etc.
- c 20 Ma India underneath Eurasia split hylobatids (E) & other hominids (W) in Tethys Ocean coastal forests,
- c 15 Ma the Mesopotamian Seaway closure split pongids-sivapiths (E) & hominids-drypoths (W):
pongids forced hylobatids shigher into the trees brachating,
hominids of Medit.-Black...Sea died out except in Red Sea Gorilla-Homo-Pan ancestors:
- c 8 Ma Gorilla followed incipient northern Rift -> Afar -> Lucy etc.
- ?5.33 Ma (Zanclean mega-flood cf. Francesca Mansfield) the Red Sea opened into the Gulf:
Pan went right -> E.Afr.coast -> southern Rift -> Transvaal -> Taung etc.
Homo went left -> S.Asian coast -> early-Pleist.H.erectus shallow-diving for shellfish. :-)
...
> > - bears also spend?spent much time in water (salmon!? cf.H.neand.?), but don't have our flat feet.
> Do you deny that they are plantigrade?
To the contrary, of course. But they lack our long flat feet ("devolved" after becoming less aquatic??).
> Also, when they run, they are quadrupedal. So spending much time in water is irrelevant.
Today, yes. IMO, ursids (Pliocene?) might have been semi-aquatic (cf polar bear still),
but although they sometimes climb, they were probably never as arboreal as hominoid Oligocene ancestors (before aquarborealism) were.
> By the way, how much is your "much time in water" supposed to encompass? 10%? For brown bears,
> including grizzly bears, I would say it is closer to 1%.
Thalassarctos: when did they split?
> > > > flat feet + rel.long 1st & 5th toes are (always?) for swimming (moving water), from pinnipeds to ducks etc.
> > > Whales and dolphins don't follow that pattern. Dolphins have two long ,"fingers," one less than half as long,
> > > and its 1st and 5th fingers are vestigial. Even the archaeocete *Durodon* had a very small pollex ("thumb")
> > > and three toes, probably 2nd, 3rd and 4th. Going back even further, to *Ambulocetus*, a whale relative
> > > no more fully aquatic than an otter, we get:
> > > "The hand had five widely spaced digits. The first metacarpal (which is in the thumb) is 5.2 cm (2.0 in) long, the second 7.6 cm (3.0 in), the third 10.5 cm (4.1 in), the fourth 10.2 cm (4.0 in),[2] and the fifth 6.39 cm (2.52 in).[5] Like modern beaked whales, the thumb is short and slender.[2]" ...
> > > "The toes are also relatively long,[6]: 59–60 with the fourth digit measuring 17 cm (6.7 in) in length. The fifth digit is slightly shorter and much less robust than the fourth. The phalanges of the toes are short, and end with a convex hoof.[2] Like seals, the phalanges of both the hands and feet are flattened, which may have streamlined them to allow for webbed feet.[6]: 60 ."
> > > --
https://en.wikipedia.org/wiki/Ambulocetus
> > Yes, that conforms our view: we were at best only very beginning (semi?)aquatics, still POS etc.
> No, it does not conform: Ambulocetus's 1st toes (halluxes), and UNLIKE OURS, are relatively short, not relatively long.
> And its 5th toes don't look to be only "slightly" shorter in the following Jpeg:
>
https://upload.wikimedia.org/wikipedia/commons/7/7b/Ambulocetus_natans_hindlimb.JPG
> The one preserved bone from the 5th toe is much shorter than the corresponding bones from the fourth and third.
> It isn't the first time that I've seen text clash with pictures in an article about long-extinct animals.
Ambulocetus was probably a fast, QP carnivore.
Early-Pleist.H.erectus were slow+shallow shellfish-divers, descending from BP aquarboreals.
> > > > Most likely, our evolution went from arboreal primates
> > > > -> Miocene aquarboreal Hominoidea -> early-Pleist.shallow-diving "archaic"Homo -> late-Pleist.wading-walking:
> > > That's your "waterside" hypothesis, which few anthropologists endorse.
> > :-DDD Not my problem!
> Yes, it is; if ever you want to convince open-minded people about how your hypothesis is better,
> you need to make better use of your evidence than you are doing here.
How? The savanna maniacs refuese to inform.
> > Initially, few geologists endorsed plate tectonics...
> Wegener and DuToit had VASTLY better evidence for continental drift [1]
> than you and JTEM have for your "Out of Asia" hypothesis;
- Not so: our evidence is perfect, 100 % clear (except for people who don't know anything on human anatomy or refuse to inform or...).
- "Out of Asia" is not my hypothesis, I'd prefer "out of Red Sea" :-D
> moreover, "endorsed" is misleading. [2]
?? English is the 5th language I had to study... (after Dutch, Latin, French, German).
> [1] "plate tectonics" is an anachronism. NOBODY thought it existed until
> evidence accumulated in the late 1950's about sea floor spreading
> and subduction.
> [2] It is precisely because Wegener and DuToit hadn't a clue about
> plate tectonics that they were at a loss for a convincing *mechanism*
> for continental drift. Once geologists understood the evidence for
> plate tectonics, they were won over to continental drift *en* *masse*.
Yes, possible.
> > > > - Homo's drastic brain enlargement required aquatic foods + DHA etc.,
> > > Elephants have brains much larger than ours, without any such benefit.
> > Relatively.
> But you are saying that they required aquatic foods.
I said: aquatic mammals often (except Sirenia?) evolve larger brains;
That's what we see in H.erectus.
> And more than we do,
> thanks to absolute (not relative) largeness.
> You need to think more like a medical researcher and less like a general practitioner
> with little insight into the difference between "absolute" and "relative."
:-D
> Unlike a notorious "Dr. Dr." in talk.origins, you do not have a Ph.D.
> in addition to your MD.
??
> > They don't have to be fast, they grow slowly, had (semi)aq.ancestors etc.
> The ancestors were herbivores; be prepared to go against the
> dominant conventional wisdom if you disagree.
Not sure what you want to say, but our ancestors were insecti->frugivores.
> The fact that sirenians are pure herbivores does little for your cause.
OK.
...
> > > > - Homo's stone tool use & extreme handiness cf. sea-otters,
> > > Weak connection.
> > Stone tools & handiness: convergence.
> Part of the weakness is that sea otters don't make stone TOOLS. They take
> stones as they come; nor do they need to do more than that, given their diet.
Yes. Which animals use stones? Which animals make tools? Which animals back-float?
> > > > - external nose + large peri-nasal air sinuses (Hn>Hs) = frequent back-floating cf. sea-otters,
> > > Another weak connection.
> > Not "weak" IMO: convergence:
> Turtles and oysters converge on being shelled. Very weak.
Archaic Homo: heavy occiput, light paranasal region.
> Hey, here's an idea: show that coast-following humans got DHA from sea turtles. :)
> Seriously, you have no evidence that sea turtles are rich in DHA, do you?
Mussels are sedimentary. Turtles swim.
> > e.g. Stephen Munro proposed this diving-cycle, probably early-Pleist.
> If you want me to take claims like this seriously, you need to provide references.
Our correspondence: excellent idea of Stephen!
https://www.researchgate.net/publication/222684445_Aquarboreal_ancestors
https://pubmed.ncbi.nlm.nih.gov/21741646/
> > cf human breathing rhythm (in hyperventilation + in nasal mucosa) of c 90 seconds:
> > - back-floating, nose up (cf. POS occiput), opening shellfish + hyperventilating,
> You drag all kinds of disconnected things into your theory with no rhyme or reason.
> Where do you get the idea that we hyperventilate when we open oysters?
??
Diving tetrapods hyperventilate when they surface.
Hyperventilation is a typically-human "disease".
> > - strongly exhaling -> diving head first, nostrils closed by prognathism,
> Very experienced divers are able to coordinate closing of nostrils with strong
> exhalation while diving. I never could do it.
OK.
> Also, shellfish are typically on rocky shores. Diving head first is suicidal in such places.
Interesting thought, thanks.
> > - squatting?kneeling on bottom, collecting shellfish,
> After having EXHALED, to keep from floating up. How long do you
> estimate they could keep underwater with flat lungs?
Hyperventilation cycle = c 90 seconds: 50" under, 40" above?
> > - pushing-off -> ascending nose-first -> back-floating.
> > Google e.g. "coastal dispersal Pleistocene Homo".
> After seeing how scattershot you are here, I want text that
> I can ARGUE with. When will you start providing some from these
> precious articles of yours that you are too lazy to quote from?
Yes...: time!
My publications 1985–2023
Human & Ape evolution = Littoral & Aquarboreal theories
1985 Med Hypoth 16:17-32 The aquatic ape theory: evidence and a possible scenario
1986 Marswin 7:64-69 Een korte inleiding tot de waterapentheorie
1987 Nature 325:305-6 Origin of hominid bipedalism
1987 Med Hypoth 24:293-9 The aquatic ape theory and some common diseases
1987 Marswin 8:142-151 Vertonen de fossiele hominiden tekens van wateraanpassing?
1990 Hum Evol 5:295-7 African ape ancestry
1991 Med Hypoth 35:108-114 Aquatic ape theory and fossil hominids
1991 1:75-112 Aquatic features in fossil hominids?
1991 1:182-192 Human regulation of body temperature and water balance
1992 Hum Evol 7:63-64 Did robust australopithecines partly feed on hard parts of Gramineae?
1993 Nutr Health 9:165-191 Aquatic versus savanna: comparative and paleo-environmental evidence
1994 Hum Evol 9:121-139 Australopithecines: ancestors of the African apes?
1996 Hum Evol 11:35-41 Morphological distance between australopithecine, human and ape skulls
1997 R Bender, --, N Oser Anthropol Anz 55:1-14 Der Erwerb menschlicher Bipedie aus der Sicht der Aquatic Ape Theory
1997 New Scient 2091:53 Sweaty humans
1997 Hadewijch Antwerp 220pp In den Beginne was het Water – Nieuwste Inzichten in de Evolutie van de Mens
1998 2:128-9 Australopithecine ancestors of African apes?
1998 --, P-F Puech 2:47 Wetland apes: hominid palaeo-environment and diet
1999 --, N McPhail, S Munro EES Newsletter 50:4-12 Bipedalism in chimpanzee and gorilla forebears
1999 --, S Munro Water & Human Evolution Symposium Univ Gent :11-23 Australopiths wading? Homo diving?
2000 --, P-F Puech Hum Evol 15:175-186 Hominid lifestyle and diet reconsidered: paleo-environmental and comparative data
2002 --, S Munro Nutr Health 16:25-27 The continental shelf hypothesis
2002 --, P-F Puech, S Munro Trends Ecol Evol 17:212-7 google aquarboreal Aquarboreal ancestors?
2007 --, S Munro 4:1-4 New directions in palaeoanthropology
2007 --, S Munro, M Vaneechoutte, R Bender, N Oser 4:155-186 google econiche Homo The original econiche of the genus Homo: open plain or waterside?
2009 --, S Munro 5:37-38 Littoral diets in early hominoids and/or early Homo?
2009 S Munro, -- 5:28-29 Pachyosteosclerosis suggests archaic Homo exploited sessile littoral foods
2010 New Scient 2782:69 Lastword 16.10.10 Oi, big nose!
2011 --, S Munro HOMO – J compar hum Biol 62:237-247 Pachyosteosclerosis suggests archaic Homo frequently collected sessile littoral foods
2011 S Munro, -- 6:82-105 Pachyosteosclerosis in archaic Homo: heavy skulls for diving, heavy legs for wading?
2011 --, S Munro, P-F Puech, M Vaneechoutte 6:67-81 Early Hominoids: orthograde aquarboreals in flooded forests?
2012 M Vaneechoutte, S Munro, -- HOMO – J compar hum Biol 63:496-503 Book review: Reply to John Langdon’s review of the eBook Was Man More Aquatic in the Past? Bentham Sci Publ
2013 Hum Evol 28:237-266 The aquatic ape evolves: common misconceptions and unproven assumptions about the so-called Aquatic Ape Hypothesis
2016 E Schagatay et al. google Schagatay Brenna reply A reply to Alice Roberts and Mark Maslin: Our ancestors may indeed have evolved at the shoreline – and here is why...
Speech origins
1986 E Morgan, -- New Scient 1498:62-63 In the beginning was the water
1987 Hum Evol 2:381 Speech origins
1988 Specul Sci Technol 11:165-171 Aquatic ape theory and speech origins: a hypothesis
1992 Language Origins Society Forum 15:17-18 KNM-ER 1470 and KNM-ER 1805 endocasts
1995 Med Hypoth 44:409-413 Aquatic ape theory, speech origins, and brain differences with apes and monkeys
1995 ReVision 18:34-38 Aquatic ape theory, the brain cortex, and language origins
1998 2:131 Human/ape brain differences and speech origins
1999 --, S Munro Mother Tongue V:161-168 Bipeds, tools and speech
2000 --, S Munro 3:236-240 The origins of phonetic abilities: a study of the comparative data with reference to the aquatic theory
2004 --, S Munro Hum Evol 19:53-70 Possible preadaptations to speech – a preliminary comparative approach
2011 M Vaneechoutte, S Munro, -- 6:181-9 Seafood, diving, song and speech
1 M Roede, J Wind, J Patrick, V Reynolds eds 1991 The Aquatic Ape: Fact or Fiction? Souvenir London
2 MA Raath, H Soodyall, D Barkhan, KL Kuykendall, PV Tobias eds 1998 Dual Congress Univ Witwatersrand Johannesburg abstracts
3 J-L Dessalles, L Ghadakpour eds 2000 The Evolution of Language Ecole Nat Sup Télécommunications Paris proceedings
4 SI Muñoz ed 2007 Ecology Research Progress Nova NY
5 NI Xirotiris, A Matala, N Galanidou, KN Zafeiris, C Papageorgopoulou eds 2009 Fish and Seafood – Anthropological and Nutritional Perspectives 28th ICAF Conference Kamilari Crete abstracts
6 M Vaneechoutte, A Kuliukas, M Verhaegen eds 2011 ebook Bentham Sci Publ Was Man More Aquatic in the Past? Fifty Years after Alister Hardy: Waterside Hypotheses of Human Evolution
books:
1997 Hadewijch Antwerp 220pp In den Beginne was het Water – Nieuwste Inzichten in de Evolutie van de Mens
2022 Eburon Utrecht NL 325pp De Evolutie van de Mens – waarom wij rechtop lopen en kunnen spreken – Medisch–biologische Inzichten en Recente Fossiele Vondsten
David Attenborough BBC 15.9.16 2x 42’ The Waterside Ape
https://www.bbc.co.uk/sounds/play/b07v2ysg
Kathelijne Bonne Gondwana talks 27.1.23
https://twitter.com/GondwanaTalks https://www.gondwanatalks.com/l/de-waterkanthypothese-hoe-oermensen-al-wadend-klimmend-rechtop-gingen-lopen/
https://www.gondwanatalks.com/l/the-waterside-hypothesis-wading-led-to-upright-walking-in-early-humans/