Brown Adipose Tissue. Everyone is familiar with white adipose or fat tissue, which provides insulation and, by storing triglyceride, serves as an energy depot. Many mammals also have brown adipose tissue, which also stores triglyceride, but has the unique ability to generate heat.
What is the Earliest Art of Northern Africa? The oldest prehistoric art from North Africa is the early Stone Age quartzite figurine from Morocco known as the Venus of Tan-Tan. It has been carbon-dated to the period 200,000-500,000 BCE, and probably was created by advanced Acheulian peoples of north-western Africa on the main southerly route into Southern Europe.
National Geographic News. Perhaps the world's most famous early human ancestor, the 3.2-million-year-old ape Lucy was the first Australopithecus afarensis skeleton ever found, though her remains are only about 40 percent complete (photo of Lucy's bones).iscovered in 1974 by paleontologist Donald C. Johanson in Hadar, Ethiopia, A. afarensis was for about 20 years the earliest known human ancestor species (Africa map).