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Friday, March 3, 2023

Biology - Human Evolution

 In Lvl 3 Biology, we are learning about human evolution from its old days millions of years ago to now. We've been given the task today to find an article about human evolution and put down what it was talking about and its key points.

For this, I used this article -->Lucy

This article goes over the first half-formed found body fossils of a past ancestor of ours. Lucy's bones were discovered in 1974, and the rest of what remaining fossils of her body were also dug up.
Lucy's Bones














This article about Lucy goes over the small things on how they knew she was a female, which species of ape she belonged to and if Lucy was the missing link to the ancestry between humans and apes. 

The scientists who discovered Lucy's fossils bones knew they belonged to one species of monkey alone and not another because her fossils fragments belonged to more than one individual. Then more fossil bones of probably the same body parts would have been found twice, this, however, was not the case. At the beginning of finding Lucy's bones, so it was hypothesized that she was a female due to her small size. And to the fact that living primates during Lucy's time had sexual dimorphism where the females were largely shorter than the males. Making it seem clear that the dug-up bones were that of a female instead of a male. Later down the line they figured out her height through her femur and learnt that she ended up being around 104 to 106 cm's in height.

Lucy would be considered half of a link, but not a missing link between apes and humans, she is more of an intermediate link between humans and apes, as there were other apes older in age way before her, so in conclusion she is only a small half of the bigger link towards humans and apes.

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