Piltdown Hoax

 1. The Piltdown Hoax was brought to our attention in 1912 by scientist Charles Dawson. he claimed that a workman had given him a fragment of a jaw bone a few years before. the Pitdown hoax is a site located in England. Charles with the help of others decided to continue digging and was able to find other parts. but then many years later they came to the conclusion that their rare findings were all forged even the original. if the findings would've been real this would have the effected the scientific community by supporting Darwin's evolution theory. 

2. all scientists are very motivated people. I feel with this scenario negatively affected the scientific process was because all possibilities or explanations were over looked of how that piece of skull couldve come to be. Dawson and the others who helped had immediately jumped to the conclusion the skull could connect primates and humans. This possibly happened because of all the commotion and the pressure to make a grand scientific discovery Dawson had put on himself.

3. a scientist in 1949 tested all the fossils together by using fluorine but this just made the discovery more confusing when the fossils had a similar amount. A few years later Joseph Weiner had taken a closer look at the fossils and to his surprise he found that the teeth were actually grinned down and asked Kenneth Oakley to confirm his findings. over time scientists were able to use more advance testing to finally the determine that all the fossils did not belong together

4. i think it would be possible to remove the human factor but it it wouldn't be smart because our curiosity is what brings new ideas theories and findings to science. without and curiosity science would not have came to the conclusions it has today such as intriguing many others to clarify certain things just like the scientists that worked together here to investigate. 

5. what i learned through this event is that not everything we read or are taught is true. in our world today it is it is always better to investigate and build our knowledge through research. it never hurts to ask questions and to become well informed about anything you want to know.

Homologous and Analogous Traits

Homologous Trait

  

Two different species that possess a homologous trait would be humans and cats. Even though both of the species may look completely different the similarities lies in between the anatomy of both. the least noticeable but amazing similar trait would be in the limbs.

 The limbs of both humans and cats are built similarly. The human arm contains a bone structure of the humerus, radius, ulna, carpals, metacarpals, and the phalanges. the main differences between the structure would be where the support is in the limbs. Cats have more in phalanges because that is their main base of their paw when they walk and their ulna is longer then a humans to support the humerus and radius. 

Researchers recently found that the common ancestor of these two species would’ve been a small rat like insect eater that lived a few years after the dinosaurs but is now extinct

Analogous Trait

The two different species that possess analogous traits are a penguin and a fish. you might think these animals are completely different but they both have fin like structures.

 These fin like structures are very important to both animals. they help make it easier for both species to maneuver through their marine environments. but since one is a fish and the other a bird the trait can not be homologous. it is made obvious that the fin evolved for both species because it was their way of being able to adapt to their environments 
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The ancestors i found for both of these species were very different. researchers found that the penguin's oldest ancestor was a larger 36 million year bird they named Icadyptes salasi. The fishes oldest ancestor was a smaller fish that they traced back over 530 million years ago named ostracodermsso. i dont believe there could be a genetically common descent because of how different both species are. It makes sense that both of these species evolved with fins because it was what was necessary for them to adapt and survive in their environments.

          

DNA

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