Thursday, September 16, 2010
There are three coopers hawks near my house. They like to fly high up in the air over a clump of trees to the west of my home. They started coming last summer, when they where juveniles. Back then, I used to go out to look for them every day, as if they were my best friends. They used to sit on a fence, each one next to each other. They then grew and became adults, and they divided territories. Sometimes I see them riding the thermals together, and I think about how beautiful they are.
Wednesday, January 20, 2010
Scientists are still trying to decide if birds should be classified reptiles.Bird legs are covered with scales, and there toes have claws. There feathers are modified scales, and they, like reptiles, lay eggs. In addition, birds evolved from dinosaurs,which were reptiles. But in my research, I found out something even more interesting, that supports the fact that birds are reptiles. In 2003,a scientist called Horner,who helped make the jurrasic park movie,made a amazing discovery. Horner figured out that he could retro-engineer the modern day bird to turn it into its ancestral relative, a group of dinosaurs called "Raptors."Horner believed that a modern bird's DNA contains a genetic memory that could be "switched on" again, resurrecting the long-dormant dinosaur traits. First,Horner tried this on the emu. It didn't work. Then, he found out that the chicken was a possible choice too. He managed to make one grow teeth, almost identical to those of an alligator!For more info, go to this link:Jurassic park comes true!