CB4a - Evidence for human evolution
- Created by: anniemazzzzz
- Created on: 03-04-18 18:30
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- CB4a - Evidence
for human
evolution
- evolution - a change in one or more characteristics of a population over a long period of time
- binomial system
- the system
of naming
organisms
using 2
Latin words
- binomial
species names
- Indian peafowl - Pavo cristatus
- modern humans - Homo sapiens
- binomial
species names
- evidence from fossils and stone
tools supports current ideas about human
evolution
- scientists
use fossils
to find out
about human
evolution
- they work out how old the fossils are then put them in age order
- stone tools
- any tool
made partially
or entirely
from stone
- stone tools are dated by assuming they are about the same age as the layer of rock
- scientists
use fossils
to find out
about human
evolution
- Stone tools made by humanlike species developed over time as the more recent stone tools found were more sophisticated
- fossil evidence
for human-like
species
- 1.6 million years ago - microscopic study of the teeth indicates that it grew up at a growth rate similar to that of a great ape. Fossil evidence shows this species cared for old and weak individuals
- 4.4 million years ago - The bones that make up Ardi’s feet suggest that humans and chimpanzees evolved separately
- 3.2 million years ago - Lucy’s bones suggest that she walked in an upright position, like a human, but possessed a relatively small ape-like skull.
- Ardi - the nickname for a 4.4 billion year old fossilised specimen of Ardipithecus ramidus that was discovered in Ethiopia
- Lucy - the nickname for a 3.2 billion year old fossilised specimen of Australopithecus afarensis
- Turkana boy - skeleton of a hominin youth who lived during the early Pleistocene (1.6 million years old)
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