14 October 2009
In class we've been studying taxonomy - the system by which life scientists classify, or group, living things. Today we grouped Teddy Grahams by similarities and differences.
As we learned, all life on the planet used to be grouped as either a plant or an animal. However, as we learned more about science and especially since the technology to analyze DNA has come about, we have had to change a lot of how we grouped living things. Modern taxonomy is based on DNA similarities and evolutionary relationships. In addition to grouping living things, scientists also try to fit together extinct species into the "tree of life". There was a major find today in the news that illustrates this. The news story is found here.