Thursday, April 28, 2011

Analogy and Homology

Lizard
Turtle
The lizard, turtle and salamander have tails but the two species that 
posses the same homologous trait are the lizard and turtle. Even though  lizards and turtles are both reptiles, they look different. Most people are not aware that turtles have tails because they tend to hide it. Dinosaurs are said to be common ancestors of reptiles and they also had similar traits,like the tail. 
Salamander

The salamander's tail is analogous trait to the lizard and turtle's tail because it is an amphibian. One common ancestor for an amphibian who possesed a tail was a Labyrinthodontia.

Labyrinthodntia

5 comments:

  1. This is really interesting! I never would've realized that a turtle and a lizard are linked.I also never knew that turtles had tails! You used very cool and unique species,and I definitely learned something from reading your post.

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  2. Good post. I had no idea that turtle had tails. It does make sense that turtles are descendants of dinosaurs.

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  4. Very intreasting post, I have a lizard just like what you posted, but mine is grey with a few spots of orange. The thing is she likes to bite everytime you touch her. I also like the picture of your turtle its interesting, I never knew a turtle would have such a long a tail.

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  5. This trait works for the homology, but the common ancestor of reptiles and amphibians was an earlier amphibian, who also had a tail (I'm having trouble coming up with an amphibian who doesn't have a tail... is there one?)

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