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These amazing aggregates are called micelles, and are the foundation for many biological functions.They are also useful for many functions such as cleansing, emulsion stabilization, targeted and/or controlled release drug delivery, formation of liquid crystalline structures and many other applications.Although other early human fossils had been discovered at that time, such as Neanderthals in Europe and Homo erectus in Asia, the African link at the centre of our own evolution hadn't been established yet. It belongs to species Homo heidelbergensis, which has also been known as Homo rhodesiensis.Charles Darwin had predicted in the 1870s that humans evolved in Africa because that was where our closest living relatives, the African apes, were.Eventually, if the concentration of amphiphilic material is increased, the surface of the solution becomes saturated, and an intriguing phenomenon occurs.
This hydrogen bonding forms a tightly stretched molecular film at the interface between air and the liquid.It belongs to the ancient human species Homo heidelbergensis.The skull belonged to an adult, probably male, and has a massive brow bridge and large face. Homo heidelbergensis lived around 600,000 to 250,000 years ago.'It is still regularly studied, and I have been collaborating for several years with an international team working on dating it more accurately - we hope to publish our results later this year'.'The Broken Hill skull it important because is the most complete and best preserved skull of Homo heidelbergensis, the species that gave rise to our own,' says Museum curator of vertebrates Rob Kruszynski.