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youth lived in a hot, dry part of East Africa near an ancient marsh.

His teeth indicate that he grew up quickly, at a rate similar to that of a living great ape.

While we have evidence that hearths were used for cooking (and probably sharing) food, they are likely to have been places for social interaction, and also used for warmth and to keep away large predators.

that spread from Africa to the Caucasus Mountains in western Asia.

Fossils include the belemnite Belemnopsis aucklandica. Which dating method is best for rocks with fossils in?

Name: Radiocarbon dating Material used: Organic remains such as wood and seeds Age range: Younger than 60,000 years ago How it works: Measures the amount of radioactive carbon-14 in the organic remains of living things Name: Fission track dating Material used: Volcanic glass, zircon and other crystals Age range: 10,000 to 500 million years ago How it works: Measures radioactivity by counting tracks left in crystals by decaying uranium atoms Name: Optically stimulated luminescence (OSL) Material used: Wind-blown sediment with lots of quartz or feldspar mineral grains Age range: Younger than 100,000 years ago How it works: Measures radiation that the mineral receives after it has been buried away from light Name: Fossil correlation Material used: Fossils Age range: All ages How it works: Fossils found in an undated rock are matched to similar fossils found in rocks that have been dated in other places Layer 1: Mudstone – sediments laid down in deep water.

The appearance of in the fossil record is often associated with the earliest handaxes, the first major innovation in stone tool technology.

Early fossil discoveries from Java (beginning in the 1890s) and China (‘Peking Man’, beginning in the 1920s) comprise the classic examples of this species.

Layer 4: Mudstone – sediments laid down in deep water. Which dating method is best for rocks with fossils in?

Layer 5: Loess – a rock made from very fine wind-blown dust. Which dating method is best for rocks with feldspar crystals buried in dust?

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