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Five special fossil finds

/\ ty Australopithecus bahrelghazali w JL (named 1997) Discovered in Chad, further north in Africa than most australopithecines, this find proves that the group was morę widespread than experts first thought.

O Homo antecessor (named w u 1997) A Spanish species that seems to show that Homo ergaster-like hominins staged an early colonization of Europę.

O Kenyanthropus platyops w O (named 2001) Aweird hominin that has a flatterned face and very narrow nose.

Jt Orrorin tugenensis (named w 2001) A controversial hominin whose leg bones suggest that it was one of the first bipedal walkers.

O 1% Sahelanthropus tchadensis w w (named 2002) A hominid that might be close to the ancestor of the chimp and hominin lineages.

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Five fire facts

■ Experts disagree over which hominin species was the first to use fire.

■ Homo ergaster and Homo erectus may have used fire for cooking 1.6 million years ago.

■ Humans used fire long before they knew how to light one. If they found a natural fire—after a lightning strike, for example—they kept it going.

■ Knowing how to use fire meant humans could settle in colder climates. Humans colonized coid northern Europę morę than 600,000 years ago.

■ By around 50,000 years ago, Neanderthals and Homo sapiens were using fire to keep warm and cook meat. They struck flints to produce sparks that lit dry wood.

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