Mr Spinkles "But even if this was true if wouldn't have any bearing on the basics of human evolution. If evolution occurred, then we would expect to find a large variety of fossils, many of which are only slightly different and therefore difficult to classify, resulting in many debates and several plausible constructions of the evolutionary tree. However, if humans didn't evolve, then it should be easy to classify every fossil into a small number of "kinds" whose ancestral lines stretch back parallel to each other to a single moment of creation".
I agree Mr Spinkles. The Taung child info is found in macrevolution net under florensiensis. It would make it all so much easier if science would try to come up with various hypothesis around evidence for a creation event. My hobbit florensiensis info shows they are very unsure what goes where. It is by no means an exact science, far from it.
I’ve done some homework.
With the Okapi info below I see subspecies with varying chromosomes 44-46. I’m curious about this word ‘species’, even when it comes to non human species. I see giraffes have 30 chromosomes, significantly less than the Okapi. This info is a little old. I note a little debate with both giraffe and okapi classifications same as human decent confusion.
Species and other taxonomic classifications are a concept invented to explain what is seen in nature. By ToE species are phases neither with a beginning nor end necessarily.
I’d say there are too many levels, class, order, family, genus, species. I think kingdom is another classification. Different species are generally not supposed to interbreed successfully. However they do as do similar subspecies. This blurs it all. This is not tight and doesn’t sound right. I think some creatures are just classified to be too far apart when they are the same animal basically with adaptive differences. However this does not sound good in light of ToE.
Okapi have not been seen to interbreed, however as I said that could be for many reason but may be genetically compatible with zebra. The “Quagga” is a reverse Okapi in that its’ top half is striped. The Quagga is a subspecies of the plains zebra. I think Okapi is the same as horse, donkey, zebra, quagga and anything like it are the same family with different adaptations.
With the recent advances in genetic testing, I would like to see the Okapi tested again. I’d say Okapi would share 99% genes with a zebra, given how close humans are to chimps. I’d guess Okapi horse, donkey, zebra, mule etc are 99% the same. Genes alone do not appear to reflect species differentiation these days.
The classification is based on the neck length. This is another classic example of the silliness of the classification system. Okapi has not been genetically compared to a Zebra nor giraffe but a cow. Have I missed it?
If Okapi and horses zebra’s etc were classified together because they look alike it would indicate a much closer common ancestor than an Okapi coming from a giraffe with the ancestor supposedly in the Miocene period. Again, science has overcomplicated the obvious and simple.
Without more solid information I’d say Okapi is a Zebra with adaptive differences and not a different species at all. It’s been classed as a different species because it suits ToE to turn every adaptive variation into a new species. I don’t think Okapi has anything to do with a giraffe.
Some info I found:
13) Genetics
The okapi chromosome number is 44, 45, or 46 in different animals (Ulbrich & Schmitt, 1969; Hösli & Lang, 1970; Koulisher, 1978). The fact that so many animals with 2n=45 have been identified, suggested that this karyotype may also exist in the wild (Benirschke et al., 1983). This has been established with certainty from the study of a wild-caught male (Petit & de Meurichy, 1986). Fusion of the acrocentric elements #8 and #21 from such a progenitor stock with 2n=46 is likely to have taken place in Zaire. It has now been verified in a specimen from Zaire by special banding techniques (Petit & de Meurichy, 1986). Moreover, Vermeesch et al. (1996) identified a specimen with a further reduction of chromosome number to 2n=44.
They compared the fusion events with giraffes and also with the nilgai antelope. Although numerically, the nilgai antelope is similar, some specific karyotypic differences exist from the okapi karyotype (Benirschke et al., 1983; Vermeesch et al., 1996). It is desirable that more detailed comparisons are made in the future between these two species' chromosomes. A study of nilgai chromosomes was compared with that of cattle (Gallagher et al., 1998), but not with giraffidae. The giraffes, on the other hand, have only 30 chromosomes.
Hybrids of okapis with other species are not known. De Bois et al. (1990) analyzed mortality with respect to parental relationship. They found a somewhat higher neonatal mortality in newborns when inbreeding coefficients were high and suggested some degree of "inbreeding depression" to be a possible cause.
22 million years ago in Libya. (Heintz 1975, cited in Skinner &
Smithers 1990). The intermediate ancestor of the modern giraffe was
Paleotragus, from the African Pliocene (Estes 1991). Giraffids of
varied forms once ranged through Eurasia, however Africa is considered
to be the original centre for evolution of the early giraffids (Heintz
1975 cited in Skinner & Smithers 1990).
Prior to the 1990’s nine subspecies of giraffe were formerly recognised
(Dagg & Foster 1976). However (Kingdon, 1984 & 1997) grouped giraffe as
four regional populations: Somali Arid, Saharan, Northern Savanna and
Southern Savanna. These four populations incorporate eight of the nine
subspecies; the home range of Rothschild’s Giraffes falls in the
overlap between the first three populations, and they are referred to
as possible hybrids.
It is likely that this natural subspecies hybridization has been taking
place for some time, as a recent DNA study of captive giraffe
subspecies in U.S.A, (whose founders were wild caught in the 1960’s)
indicated that G.c.rothschildi are not genetically distinct from G. c.
reticulata (Baysdorfer 2000). So giraffe taxonomy is likely to be
debated for sometime into the future.
2.2 Subspecies and Taxonomic Issues
Giraffe taxonomy has been much debated. Each subspecies has been
identified by a particular geographical range, coat pattern and coat
coloration. The home ranges of several subspecies overlap, and
subspecies hybridization occurs in the wild. Formerly there are nine
recognised subspecies of giraffe, (Dagg & Foster 1976 Table 1).
Considerable uncertainty surrounds the validity and geographic limits
of many off the described giraffe subspecies.