As mentioned above, the two skulls were compared are Proconsul Africanus (an ape skull) and Gracile Australopithecine (a hominid skull). Proconsul Africanus was from Kenya and lived 23.8-5.3 million years ago. However, Gracile Australopithecine was from Ethiopia and lived 5.3-1.8 million years ago. Based on observation the tooth size is different especially in terms of the canine teeth. The ape skull has large canine teeth whereas the hominid skull has small ones. The brain size of the hominid is bigger whereas the brain size for apes seem smaller. The skull opening is on the middle for the apes whereas it is at the bottom of the head for the hominids. The shape of the skull may seem similar but the ratio of the skull to the face is smaller
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Scientists are confident that giraffes and dinosaurs are not related under any circumstances however they have a long neck to increase their chances of survivability. The adaptation occurred giraffes needed to access trees which other animals couldn’t as there were a lot of competition.
Homologous trait:
Due to common ancestors, the descendants share similar attributes (Whitson 1).
The first example is the grazer’s teeth. They have had the teeth for a long time coming from their ancestors however it has gotten taller and tougher than other ancestors so they have a more preferable trait as they can tear strong flesh now so there are more options for food. The change came about because other animals may have been eating their share of food because they had stronger teeth so they had to make their teeth stronger to survive.
The second example is about how the hoofed mammals seemed to have come from the same ancestor. The photo claims that whale ancestors had hooves as well. Now whales live in the water but camels live on land and still has hooves. The hooves help in stabilizing one to walk properly on sand without sinking in the sand. Animals such as camels still have hooves because it is beneficial for survival since they are living in an environment that prefers it however whales got rid of them because they realized that they don’t need it to survive the water but they both have the same traits from a common
Scientists are confident that giraffes and dinosaurs are not related under any circumstances however they have a long neck to increase their chances of survivability. The adaptation occurred giraffes needed to access trees which other animals couldn’t as there were a lot of competition.
Homologous trait:
Due to common ancestors, the descendants share similar attributes (Whitson 1).
The first example is the grazer’s teeth. They have had the teeth for a long time coming from their ancestors however it has gotten taller and tougher than other ancestors so they have a more preferable trait as they can tear strong flesh now so there are more options for food. The change came about because other animals may have been eating their share of food because they had stronger teeth so they had to make their teeth stronger to survive.
The second example is about how the hoofed mammals seemed to have come from the same ancestor. The photo claims that whale ancestors had hooves as well. Now whales live in the water but camels live on land and still has hooves. The hooves help in stabilizing one to walk properly on sand without sinking in the sand. Animals such as camels still have hooves because it is beneficial for survival since they are living in an environment that prefers it however whales got rid of them because they realized that they don’t need it to survive the water but they both have the same traits from a common