Search Results (5)

The challenging task of correctly estimating the body size of prehistoric hominins from footprint dimensions has been a matter of long debate, but researchers are still divided about the best methodological approach for obtaining compelling estimates. This research attempts to infer the body size of the trackmakers, who impressed their footprints on the uneven ground slope of a Roccamonfina volcano’s ignimbrite (≈350 ka) at the Foresta/“Devil’s Trails” ichnosite. We used the equations selected among the most adequate for the footprints of this peculiar ichnosite with an exploratory purpose and from a critical estimation point of view. The values of the body size derived from the different equations are highly variable; the minimum and maximum values can differ by up to 50%. The variation range is similarly large when applying the same equations to the footprints from some North African and European Lower Paleolithic ichnosites. The variability of the results mainly depends on the technique of footprint measurements, the environmental context (substrate, surface slope, trackmaker gait, etc.), the equation used, and, to a minor extent, the dimensional slight differences between a fleshy foot and a footprint. This makes comparisons among the sites challenging. All things considered, we could say that the average body mass (about 60 kg) and stature (about 166 cm) of Foresta trackmakers, who may be individuals of different sexes, fall in the range of the Middle Pleistocene Homo heidelbergensis s.l. Full article

Multiple viewpoints exist among Protestant Evangelical Christians regarding human origins, with each offering different answers to questions regarding the existence of Adam and Eve and their relationship to humanity, common human–ape ancestry, evolution and intelligent design, humanity’s relationship to other members of the genus Homo (e.g., Neanderthals and Denisovans), and the timing of human origins. This article will review eight models for human origins which have recently received attention: (1) the Classical Theistic Evolution/Evolutionary Creationism model, (2) the Homo divinus model, (3) the Genealogical Adam and Eve model, (4) the Homo heidelbergensis model, (5) the Unique Origins Design model, (6) the Classical Old Earth Creationist model, (7) the Classical Young Earth Creationist model, and (8) an Old Earth/Recent Humans Hybrid model. Key features of each model will be described, and critical responses will be discussed in light of agreement or disagreement with traditional Judeo-Christian theological views and the scientific evidence. Most of these models maintain that science does not force one to abandon belief in core tenets of a traditional Adam and Eve, though they resolve the relevant scientific and theological questions in different ways and with varying degrees of success. Full article

A number of different approaches are currently available to digitally restore the symmetry of a specimen deformed by taphonomic processes. These tools include mirroring and retrodeformation to approximate the original shape of an object by symmetrisation. Retrodeformation has the potential to return a rather faithful representation of the original shape, but its power is limited by the availability of bilateral landmarks. A recent protocol proposed by Schlager and colleagues (2018) overcomes this issue by using bilateral landmarks and curves as well as semilandmarks. Here we applied this protocol to the Middle Pleistocene human cranium from Steinheim (Germany), the holotype of an abandoned species named Homo steinheimensis. The peculiar morphology of this fossil, associated with the taphonomic deformation of the entire cranium and the lack of a large portion of the right side of the face, has given rise to different hypotheses over its phylogenetic position. The reconstruction presented here sheds new light on the taphonomic origin of some features observed on this crucial specimen and results in a morphology consistent with its attribution to the Neanderthal lineage. Full article

The important discoveries of Lower Palaeolithic artefacts in stratigraphical context within Lower and early Middle Pleistocene deposits in the western continental part of Europe along the rift systeme of the Rhine Valley are pointing at the possible continuous presence of hominins since the Lower Pleistocene. This paper reports on lithic industry from its early appearance at around 1.3 million years (Ma) at the site of Münster-Sarmsheim to the latest pre-Elsterian period at around 0.6 Ma at Mauer, Mosbach, and Miesenheim. Full article

If we wish to understand how our species can adapt to the coming tide of environmental change, then understanding how we have adapted throughout the course of evolution is vital. Evolutionary biologists have been exploring these questions in the last forty years, establishing a solid record of evidence that conventional, individual-based models of natural selection are insufficient in explaining social evolution. More recently, this work has supported a growing consensus that our evolution, in which we have expressed extra-ordinary adaptive capacities, can best be explained by “Multi-level Selection”, a theory that includes the influence of both genes and culture to support unique adaptive capacities premised on pro-social behaviours and group selection, not individual-level competition for survival. Applying this scholarship to contemporary concerns about adapting to environmental change may be quite fruitful for identifying sources of vulnerability and adaptive capacity, thereby informing efforts to enhance the likelihood for sustainable futures. Doing so, however, requires that we bridge the gap between evolutionary biology, and the social sciences study of sustainability. Full article