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Thanks to Wikipedia for most of the content and many of the images. The toolmakers took core rocks or pebbles and struck them with a spherical hammerstone, creating conchoidal fractures that often made an edge or sharp tip and left behind flakes.The earliest tools of the next period, the Acheulean, lasting from 1.7 mya to 300,000 BCE, are found in Kenya.

When Abby's father disappears, the terrified girl is left to fend for herself.

Neolithic toolmaking is characterized by ground or polished implements made of non-flaking materials.

During this phase, polished stone axes were used to clear forests in temperate zones.

Despite these tantalizing discoveries, many scholars believe that man (specifically The date that humans began cooking food is the subject of much debate.

One group of scientists believes that cooking was invented between 2.3 and 1.8 mya.

These more complex tools include biface stones, which were worked extensively on both faces, and include the first hand axes.

In many areas, the next phase was the Mousterian, which lasted from 300,000 BCE to 28,000 BCE and produced smaller and sharper knife-like tools and scrapers.

Theories about the origins of speech and language abound.

Continuity theorists believe in a long, slow evolution of human language from the pre-language systems of our primate ancestors.

Certified Fresh Movies and TV shows are Certified Fresh with a steady Tomatometer of 75% or higher after a set amount of reviews (80 for wide-release movies, 40 for limited-release movies, 20 for TV shows), including 5 reviews from Top Critics.

Twelve-year old Owen is viciously bullied by his classmates and neglected by his divorcing parents.

Pottery is defined by some as any fired ceramic wares that contain clay when formed, while some archaeologists restrict pottery to ceramic vessels.