Some fossil evidence indicates large birds of prey occasionally preyed on prehistoric hominids. The success of "Homo sapiens" lends evidence to their higher cognitive abilities above other hominids. Traditional characters represent those most commonly used in systematic studies of apes and early hominids. Neanderthals are also contenders for the first hominids to intentionally bury the dead. The hominids, are primarily omnivores. The first known hominids evolved in Africa. Early hominids, the ancestors of humans, appeared in Africa near the end of the period. Louis Binford (1986) criticised the idea that early hominids and early humans were hunters. Early hominids led a nomadic hunter-gatherer life. Israel has evidence of the earliest migration of hominids out of Africa. The trilogy's volumes are "Hominids" (published 2002), "Humans" (2003), and "Hybrids" (2003). The "metacone" is a cusp on the molars of the upper dentition in hominids. The origin of the name "yowie" to describe unidentified Australian hominids is unclear. Genetic evidence has supported the theory of multiple waves of hominids moving into Australia. Fire was an important factor in expanding and developing societies of early hominids.