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Human Evolution
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Hello everybody, we are Enrique Chico and Javier Hernández and we are going to talk about human evolution.
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First we are going to introduce the topic with a brief summary of human evolution
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and then we will talk in detail about the different stages of the evolution that humans have suffered.
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Human evolution is the evolutionary process that led to the emergence of modern humans,
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beginning with the evolutionary history of primates, is characterized by a number of
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morphological development, physiological and behavioral changes. The most significant of
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these adaptations are bipedalism and increased brain size, because it helps obviously for them
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to move faster. The primate is extinct nowadays and it appears at the bottom of the human family
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Their brain capacity is of 450 cubic centimeters, one of the smallest in the whole evolution.
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Their facial features were different from the humans, so they look more as an ape, but
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its main feature is that they were the first that could walk at two legs and upright.
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This type of homo appeared 2.5 million years ago, and the first remains from this stage
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was found in Tanzania. They had a larger cranial capacity comparing with the Australopithecus
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because it measured 750 cubic centimeters. They innovated production due to the production of
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stone weapons and due to this they started eating meat and lipids because they hunted with those
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weapons. The home antecessor appeared one million years ago. It was found in Atapuerca and that's
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why it is also known as Homo ataporicus. They are Europe's oldest species and had a cranial
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capacity of 1000 cubic centimeters. They practiced cannibalism and they were tall and strong.
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They usually worked wood to make cattle and tools to use their daily life. Well,
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Continuing with the presentation, I'm going to talk about the homer gaster. The homer gaster
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emerged 1.9 million years ago. They lived in Africa but afterwards they expanded to the east.
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This stage had a distribution in terms of work. Why? Because women had to take care of children
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and children also have woman to do clothes with animal fewer when they had
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grown up enough to walk. They had a good domination of fire and due to this their
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chances to survive increased and they could have a easier survival. They also
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applicated the fire to other uses. For instance they drive away predators and
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they use it to get warm too. Their cranial size was about 900 cubic
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centimeters so it became bigger. Well now talking about the Homo erectus, the
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Homo erectus emerged 1.8 to 3 millions years ago. This type of Homo migrated to
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Europe and Asia, but the remains were first found on Indonesia.
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The skeleton is very similar to the actual human.
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In this stage, they feed with animals that were already dead.
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This led to the merge of hunting tribes.
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This primate innovated a new use of fire, that consists on using fire to cook raw meat
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in this case, but they also use it for the same uses as the previous primates, for instance
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to get warm or to drive, as I said before, predators.
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Talking about the Homo Neanderthalensis, the Homo Neanderthalensis inhabited Europe and
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some parts of West Asia 230,000 years ago.
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This primate was robust and strong.
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They had a big head and a particular bulky nose and jaw.
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In this stage, they developed their own lithic industry with their own materials.
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Their cranial size get bigger than the previous one, getting the size of 1550 cubic centimeters.
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For me the most rare feature that this primate has is that nowadays we don't know for sure
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the causes of their extinction, it's a complete mystery.
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And at the end we are going to talk about Homo sapiens.
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Homo sapiens emerged 195,000 years ago.
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They innovated their tools by using new materials such as bones and or ivory to make spears and
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axes.
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They increased their brain plasticity, so they started to develop very fast their culture.
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They hunted, they fished, they worked with fuels and started to make their own clothes
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in order to protect from the cold winters and the cold weather.
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They also innovated with domestic animals that were used for hunting, and as you see
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in the picture at the bottom, it shows a dog, the humans have a dog, and the dog is helping
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them to hunt a deer in this case.
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And this is the different sources that we used to get all this information.
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So thanks for listening, and this is the end.
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- Idioma/s:
- Autor/es:
- Javier Hernández Agustí and Enrique Chico Calero
- Subido por:
- Javier H.
- Moderado por el profesor:
- Ismail Ali Gago (ismail.ali)
- Licencia:
- Reconocimiento
- Visualizaciones:
- 70
- Fecha:
- 28 de mayo de 2020 - 13:32
- Visibilidad:
- Público
- Centro:
- IES CERVANTES
- Duración:
- 06′ 50″
- Relación de aspecto:
- 1.78:1
- Resolución:
- 1920x1080 píxeles
- Tamaño:
- 15.85 MBytes
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