The earliest unambiguous evidence for modern human behaviour has been discovered by an international team of researchers in a South African cave. Earliest Signs, Beads Plays, Earliest Unambigu, International Team, Animal Behavior, Human Culture, Human Behaviour, Earliest Evidence, African Caves
3.5 million years ago... early humans moved into the grasslands and began to add grass and grains to their diet.
The idea that humans nearly became extinct 75,000 ago because of a super-volcano eruption is not supported by new data from Africa, scientists say. In the past, it has been proposed that the so-called Toba event plunged the world into a volcanic winter, killing animal and plant life and squeezing our species to a few thousand individuals. An Oxford University-led team examined ancient sediments in Lake Malawi for traces of this climate catastrophe. It could find none.