It shows how the past and present geographical distribution of organisms played a role in their evolution.Also, how species are distributed in accordance to the genetic relationships they share with other organisms.
Marsupials and Placental Mammals
Marsupials animals are almost exclusively found in Australia, while Placental mammals are very rare there. There are fossils of marsupials in North America, and South
America. 30 million years ago South America and Australia were connected together by a continental bridge (Antartica). Evolution is proven by the fact that there was fossils of various Marsupials found on
Antartica
which is what shows that there was a migration of them from
South America to Australia, by crossing
Antartica. …show more content…
In the different places that the camels now reside in, they evolved in accordance to their surroundings, adapting to the new environment they live in.
Anatomy
The anatomical similarities between species shows how species have evolved either independently or from a common ancestor.
Vestigial structures are organs/structures that are present but no longer functional in organisms, but have been functional and present to their ancestors. The appendix, wisdom teeth, ear muscles, tonsils, and tail bones in humans
These organs serve no use to humans, however they are still present in their body. It is unknown why humans still have these organs, but these organs are remnants that served an important function in their primitive ancestor. These structures give observable evidence of the evolution of humans.
Homologous features are features or structures from different species that do not appear similar but have a very similar function as well arrangement of bones, nerves and muscles which are acquired from a common ancestor.
The human arm, a cat’s forelimb, and a bat’s wing
The underlying structure of these organisms’ limbs are very alike. All three have 5