This student page contains evidence of evolution: past, current & in the laboratory. Feel free to add and edit as many pieces of evidence as possible. Do include textual explanations (in addition to multimedia, if you choose) and links to your original sources. Place your name next to anything you add to this page. Please visit the main Evolution page for more background.

As you can see in this picture, a monkey is over time evolving into a everyday human. It shows mutation and variation within millions of years.





















This a a picture of finches and their beaks. This pertains to evolution as we did a case study on beak sizes and how they relate to natural selection in the birds, with ones with smaller beaks being unable to eat certain berries, which limited their food source. This caused more of them to die off as their food was decreased.



















This picture shows an example of sympatric speciation.
These creatures are not separated by any geographical
barriers and live in the same area/environment.The two
organisms, in this picture, are attracted to different fruits
and because of this the creatures do not see one another
often and do not reproduce with one another. This is an
example of habitat isolation. Sympatric speciation is a big
part of evolution and shows us ways of how new species
can be formed over time.


Sympatric Speciation (Habitat Isolation)
by: Phillip14



Whale Evolution
This is the evolution of the whale. From a land creature to an underwater creature. March 17, 2010 Georgina


Video

These three videos are posted on you tube by user cdk007. They show evidence that evolution occurs in three videos.The first video deals with mutations. The second deals with DNA. The third deals with common ancestors. This is relevant because we are learning about evolution in intro biology class.

This Evolution Tree proves that the theory of evolution is true. It shows that all organisms that live, or have lived, came from one common ancestor. Zoe 1/12/10
ack:http://images.google.com/imgres?imgurl=http://www.thetech.org/genetics/images/news/evolutionTree.gif&imgrefurl=http://evahscientist6.blogspot.com/&usg=__ASePWLk08AB0g2YYliJXboZlpuo=&h=303&w=250&sz=15&hl=en&start=16&um=1&tbnid=SteQvFPINPC8UM:&tbnh=116&tbnw=96&prev=/images%3Fq%3Devidence%2Bof%2Bevolution%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26sa%3DN%26um%3D1 for the image














This is the embryo cycle of a dog, bat, hare, and human. It shows that they are very similar. Especially in the earliest stages.




















This shows the adaptation of a pent-dactyl limb in mammals. Every bone shown has their own variation of the limb.
Homology Theory- Evidence of Evolution

This video describes the flaws and strengths of the homologous theory, which is that organisms come from a common ancestor and to prove this they will have similar bone structures. The video also describes Darwin's ideology in a very interesting way.


(sorry for the fuzzyness)
This image is of the developing embryos of three different species. It is showing the embryological evidence of evolution. It shows evolution, because they are so similar in the beginning, but as they grow, they become more and more different. This seems to be the same with evolution. Life started with one organism, and gradually changed because of mutations, or differences. If these mutations were beneficial, they prospered more than others.


This picture shows that a horse can share a common ancestor with other animals and how the horse's ancestors were different and had different bone structures. The horse 60 million years ago had limbs on their foreleg and the present day horse does not. It shows that over time the horse 60 million years ago was much smaller and over time it got bigger. Also their teeth got a lot bigger ad their hair got longer. This shows evolution over time.
acknowledgments: http://www.bringyou.to/apologetics/HorseEvolution.gif where i got the first picture and http://www.freewebs.com/creation-vs-evolutionism/evolutionfrauds.htm where i got the second picture. (On this link there are also other pictures of evidence of evolution) (It also talks about the peppered moth story just like what we have recently learned in class.) Posted By Jennie Nadel 1/7/10



This is a striped clover that grows mostly in North Carolina. It contains Cyanide and has a white stripe to warn predators about the poison on the inside. We learned about the plain and striped clovers in one of our case studies. The picture is from http://www.wilsonsbiologylab.com/photo/8614802/clover. Posted by Aliza Cohen. 1/11/10





















Speciation Video From PBS. This video from PBS explains how a species can be put into two different environments and adapt to it. After long periods of time, the organisms in that species will adapt so much to their given environment that they will both become an entirely new species. The organisms in each environment have not shared the same gene pool for so long that their traits have grown so different from each other that they are no longer considered the same species. The species that PBS used were Hummingbirds living in the lowland rain forests and the windy meadows on the Andes Mountains in Ecuador. Evolutionary Biologists, Tom Smith and Chris Schneider take you through each habitat and explain how the Hummingbirds have evolved and are no longer the same species due to isolation and change in environment. Posted by Alex Scheman 1/10/10.



This is a video that Section 2 saw part of. It is about evolution and connecting the facts about it. Added by Arielle14 1/11/10. Acknowledgments: Youtube for providing videos.

This shows that birds didn't always look the way they do now. The first form of them didn't even have wings. By Max2014 This is a video of the case study about the Natural Selection in the Peppered Moth species. The video came from youtube and it covers everything we did in the case study. Added by Mason Borden 1/12/10 This is a picture of the embryos of several different species. It shows that in the early stages of life the embryos look very similar. Scientist think this is because all species have one common ancestor. As the embryo grows the genes take effect and it starts to become a cow, pig, human, etc... Added by Georgina Johnson 1/14/2010 http://www.bio.miami.edu/dana/pix/comparative_embryo.jpg This picture is showing that the whale's fins are similar to our arms and to other organisms limbs. This is some proof that evolution happened and is now. This is proof because there must of been an organism that reproduced and its offspring mutated and split into different organisms, the remaining proof here is its "arms" Added by Daniele Marcato 1/14/2010 The Peppered Moth lives on trees and is the same color as them so as to blend in with their environment and not be eaten by predators. There are two types of Peppered Moths, a light kind and a dark kind. The trees that they stayed on were always light and the light moths thrived. But then when the industrial revolution began and the pollution made the trees darker the light moths began to die and the darker one's thrived. Then, the order switched and the light moths grew back in population and the dark moths' population shrunk. Reuben Gordon 3/18/10. Two Australian researchers, a marine biologist for Macquarie University in Sydney and a biological oceanographer from Flinders University in Adelaide, have used DNA tests to explain a reason for why seahorses swim upright. The Seahorse today has atail to swim but the Pygmy Seahorses have tails that are used to cling onto plants, but the still swim upright. The scientists examined the two species’ DNA and worked out when they split by using molecular dating, that counts the accumulation of the differences in DNA. There are fossils that the scientists used to find out that there was a common ancestor thatlived between 25 and 28 million years ago. 25-2 million years ago, the Australian Continental plate andthe Eurasian plate collided, which pushed up sea floors and created shallow seas instead of deep oceans that had been there before. Grass grew in the new sea floors and that was the preferred habitat. The grass was a great camouflage for the seahorses, upright swimming fish. The seahorses populated because they had camouflage and spread around the world. The Pygmy Seahorse lives in Australasiaon algae reefs. This relates to evolution because these two species of aseahorse did not used to be two different species. This is good evidence of evolution because it shows that aspecies can become 2 species and this is a good example of Allopatric Speciation Added by Ben Irving 1/14/10