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CT Study of Early Humans Reveals Evolutionary Relationships

By Guest PostSeptember 20, 2011Sciencea africanus, a boisei, a robustus, africa, anatomy of the face, anterior pillars, australopithecus, bony columns, brian villmoare, classic evolutionary puzzle, convergence, ct scans, east africa, facial features, fossil skull, hollow columns of bone, key ancestor of modern humans, parallel evolution, South Africa, william kimbel

CT scans of fossil skull fragments may help researchers settle a long-standing debate about the evolution of Africa’s Australopithecus, a key ancestor of modern humans that died out some 1.4 million years ago.

The study, to be published in the Proceedings of the National Academy of Sciences, explains how CT scans shed new light on a classic evolutionary puzzle by providing crucial information about the internal anatomy of the face. (more…)

Ancient Whale Skulls and Directional Hearing: A Twisted Tale

By Guest PostAugust 25, 2011Nature, Scienceaaron wood, archaeocetes, asymmetric skulls, baleen whales, basilosaurus isis, biological sonar, ct scans, echolocation, fossil, julia fahlke, modern whale, mysticetes, national science foundation, nsf, odontocetes, paleontologist, philip gingerich, richard lane, robert welsh, signs of artificial deformation, skewed skulls, symmetrical skulls, terrestrial mammals, three dimensional digital model, three dimensional torsion, toothed whales, twist, university of michigan

*Skewed skulls may have helped early whales find direction of sounds in water*

Skewed skulls may have helped early whales find the direction of sounds in water and are not solely, as previously thought, a later adaptation related to echolocation.

Scientists affiliated with the University of Michigan and funded by the National Science Foundation (NSF) report the finding in a paper published online this week in the journal Proceedings of the National Academy of Sciences. (more…)

Tag Archives: ct scans

CT Study of Early Humans Reveals Evolutionary Relationships

Ancient Whale Skulls and Directional Hearing: A Twisted Tale