Posted on 10/23/2009 9:30:08 PM PDT by SunkenCiv
Research examining microscopic marks on the teeth of the "Lucy" species Australopithecus afarensis suggests that the ancient hominid ate a different diet than the tooth enamel, size and shape suggest, say a University of Arkansas researcher and his colleagues. Peter Ungar, professor of anthropology, will present their findings on Oct. 20 during a presentation at the Royal Society... "The Lucy species is among the first hominids to show thickened enamel and flattened teeth," an indication that hard, or abrasive foods such as nuts, seeds and tubers, might be on the menu, Ungar said. However, the microwear texture analysis indicates that tough objects, such as grass and leaves, dominated Lucy's diet. This challenges long-held assumptions and leads us to questions that must be addressed using other techniques," Ungar said. Researchers thought that with the development of thick enamel, robust skulls and large chewing muscles, these species had evolved to eat hard, brittle foods. However, the microwear texture analysis shows that these individuals were not eating such foods toward the end of their lives... The researchers discovered that microwear profiles of the three east African species, A. afarensis, A. anamensis and P. boisei, differed substantially from the two south African species, P. robustus and A. africanus, both of which showed evidence of diets consisting of hard and brittle food.
(Excerpt) Read more at physorg.com ...
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To all -- please ping me to other topics which are appropriate for the GGG list. |
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Well, that pretty much does it for you Darwinists. The fact we learned something we didn’t previously know means evolution can be thrown out the door! /icr
/johnny
:’)
Stay tuned folks for next installment of the Lucy and Ardi Show.
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