OHS2020 Chap5

What are the main characteristics of the Homo genus?

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Where is the human behavioral complexity shown?

Humans today show great behavioral complexity compared to other animals and it can be seen in our reliance on tool-making and tool-using in everyday life.--MarioS (discussion) 7 avril 2020 à 17:37 (CEST)

What differentiates humans from apes?

Complex language is a defining feature of humans because we can deal with abstract concepts and talk about the distant past or future, while apes can only transmit basic information. Also our long-legged body shape with a human-shaped rib cage and the loss of climbing adaptations in the upper body is an important human characteristic.--MarioS (discussion) 7 avril 2020 à 17:43 (CEST) Humans also have a relatively large brain compared to their body size. --ColetteB (discussion) 23 avril 2020 à 16:26 (CEST)

How was the ancient climate ?

The ancient climate is caracterised by lots of fluctuations that went from one extreme to the other. The climate went from glacial area to a more warmer period depending on the time period. These fluctuations caused the loss of a lot of different species that then had to adapt themselves in order to survive. Our period which is a quite stable climate period is called the Holocene. There exists 3 factors behind the warming of the earth; first, "the degree of circularity of the earth's orbit around the sun", second, "the changing tilt of the earth's axis of rotation", and then, "the varying time of the year when the earth is closest to the sun.". The ancient climate took a big role in terms of evolution of the species and also the losses and creations of new ones.--NoraM (discussion) 20 avril 2020 à 14:22 (CEST)

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