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The words
For many [decades / decodes] , scientists believed the earliest humans originated in East Africa. This [believe / belief] has changed because of a [collection / collector] of 2.4-million-year-old stone tools [finding / found] in Algeria. Scientists now believe that Algeria and not East Africa is the cradle of civilization - where humankind began. The new [found / find] consists of 250 tools. There were [again / also] 296 animal bones. The scientists say the animal bones show that early humans were [butchered / butchering] meat. Dr Mohamed Sahnouni, leader [of / to] the project, said: "The evidence from Algeria changes the earlier [view / viewed] that East Africa was the cradle of humankind." He added: "Actually, the [entire / whole] of Africa was the cradle of humankind."

Archaeologists have been digging at [variety / various] sites on this project for 25 years. The sharp-edged tools and [bones / bony] were discovered near the city of Setif, about 200 miles east [of / off] Algeria's capital, Algiers. In particular, the animal bones [exited / excited] the scientists. Dr Sahnouni said it is now clear that [humane / humans] were butchering animals for meat 600,000 years earlier than previously [thought / think] . A Spanish archaeologist said: "The [effected / effective] use of sharp-edged tools ...suggests that our ancestors were not [mare / mere] scavengers." She said it wasn't clear whether or not they [hunted / haunted] , but they did compete with other animals to get access to meat. Dr Sahnouni now hopes to find the tool-makers and even older [stoned / stone] tools.

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