Re: coherent, complex & dynamic timeline


"nickname" <alas_my_loves@xxxxxxxxx> wrote in message
news:1169753750.258866.38560@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Chap,

Toba: see tiger bottleneck also.
thx... have been reading a bit on that now...


Homo & All great apes construct "woven" nests, no lesser apes do, nor
do any monkeys or other primates AFAIK.

Hominoid Nest building may have originated with reed bundle floating
(either mobile rafts or immobile reed mounds) in wetlands, single-use
(due to water absorption) continued when they became more arboreal,
discarding nightly tree-nests.

perhaps. but then wouldn't we find more hss characteristics in gorilla and
pan? that is, if the significant hss characteristics were shaped from
contact with water. (i have no strong opinion on that one way or the
other... rather... i am still open to what the evidence reveals.)
whatever the cause, that nest building is what leads directly to our
building of dwellings in this day and age.
chimps, by the way, do not poop in their nests but will poop over the
edge (Re: Jane Goodall) except when severely ill.
when i have encountered bundles of reeds at the water's edge, they have
tended to be rather on the stinky side, and have a bit of flies and gnats
working it. however, there were also crabs, too. But this is a good
idea... good thinking!... and I would like to hear more about what you
beleive about the beginning of nest building. thanks...


Hominids (pre-Homo and Homo esp.) may have been constructing watercraft
(dug-outs) from downed river trees, with or without fire, in
association with hand-axes (found mainly at waterside and near
quarries), for a million+ years. Oldest known dug-out wood
evidence:9kya Korean.

Most reptiles have spherical eggs (normal for fish, amphibs too.), most
birds have ovoid eggs, this indicates that birds went through a
cliff-dwelling bottleneck as round eggs roll off cliffs, ovoid eggs
usually won't, natural selection resulted in modern tree-dwelling birds
laying ovoid eggs in nests.

I think that ovoid eggs predate the K-T boundary and were laid by some
dinosaurs? ... and nope, i haven't done any hunting with dogs and a boat.
--chap


Chap, (or anyone), ever do any duck-hunting with a dog and a boat?

See AAT for more info.
DD

On Jan 22, 6:47 pm, "Chapstick" <chapst...@xxxxxxxxx> wrote:
"Chapstick" <chapst...@xxxxxxxxx> wrote in
messagenews:45b570fd$0$28102$4c368faf@xxxxxxxxxxxxxxxxx



my own snippett from an earlier thread:
"To summarize what I am trying to think... I am interested in a sort of
coherent, complex & dynamic, timeline of human development. I think we
all want that. How did we become this thinking being? and not just
another
chimp? Does the chimp "think?" and etc."

and this timeline from sap (Charles and Phillip):
abbreviations:
LCA = Last Common Ancestor (with Pan)
PA = PaleoAnthropology
~ = about
mya = million years ago
kya = thousand years ago (this in preference to using BC)
HN = Homo Neanderthal...
hss = us, modern humans

225 mya = evolution of mammals during the Triassic
65.5 mya = the K-T boundary... extinction of dinosaurs, Cf. the
Chicxulub
structure on the Yucatan
~16 mya = pongoids split into orangutangs/hominoids (gorilla, pan,
homo)
~10 mya = gorilla/pan-homo split
~ 8 mya = pan/homo split (ie, our LCA was 5-9 mya)
4.5 mya = Ramidus (an intermediate??)
3.5 mya = early afarensis (Lucy) (apiths)
2.5 - 1.8 mya, = homo erectus (currently believed to be in our line)
~600 kya = Neanderthal/Homo sapien split (or 230 kya)
400 kya - various African erectoids.
~120 kya = something happens to make us "more human". (this date
fluctuates between 200 kya and 70 kya).*
60 kya = presumed that humans used a boat to arrive in Australia
40 kya = "explosion" into Hss...Cro-Magnon cultures expand
~30 kya = Neanderthals extinct.**
~25 kya = remnant erectoids of Austro-Asia go extinct
14.5 kya = Clovis culture Native Americans enter North America.
10 kya = invention of writing (this took until 7 kya to solidify)
4.5 kya = pyramids built

* one could say that between 180 kya and 120 kya, "a predisposition for
human culture distinct from other hominoids evolved." --Phillip D.
** the first presumed entry of modern humans into Europe, then the
domain
of the Neanderthal, was about 43kya. The last known HN fossils are from
Vindija in Croatia dated between 28-29 kya.

and this little snippett about the K-T extinction from Wiki:
http://en.wikipedia.org/wiki/Cretaceous-Tertiary_extinction_event
"Omnivores, insectivores and carrion-eaters appear to have survived
quite
well. It is worth noting that at the end of the Cretaceous there seem
to
have been no purely vegetarian or carnivorius mammals. Many mammals,
and
the birds which survived the extinction, fed on insects, larvae, worms,
snails etc., which in turn fed on dead plant matter. So they survived
the
collapse of plant-based food chains because they lived in
"detritus-based"
food chains."
"No land animal larger than a cat survived."

Any strong disagreements about this data?

By the way, I think it of some interest that as far back as 16 mya, our
"line" was into some sort of nest-building, since the gorilla build a
nest
every night & we share that trait.
--chapThese dates are rather significant too, Re: the Toba eruption 74
kya.http://j.dollan.home.bresnan.net/TLU01.html

80,000 BP: The ancestors of all non-African peoples are believed to
have migrated from Africa as a single population. October 25, 2005
74,000 BP: The Toba Caldera erupts in its most recent explosion,
spewing out 2,800 cubic kilometers of material, and thus forming the
Young
Toba Tuff. This eruption is believed to have caused a genetic bottleneck
in
Humans, due to the resulting extreme climatic conditions. October 25,
2005
71,000 BP: The documented time of the Human genetic bottleneck,
believed to have been caused by the Toba eruption. The Human population
in
the world is thought to have fallen to as few as 15,000 individuals. In
short, Humans nearly became extinct. October 25, 2005



.

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