In class today we did a article that talked about how fish will evolve to different temperatures. The we talked about the blog about last class on extinction and endangered species. In today's class we talked about what happens when a new species is brought into an ecosystem. After that we talked about how a lion would change a whole ecosystem at a farm with lots of other smaller animals. We learnt 2 new vocabulary words fist one was introduced species it is an organism that is not native to the place or where it is considered introduced. It has been accidentally or deliberately transported to the new location by human activity and also we learnt invasive species it means an alien species whose introduction does or is likely to cause economic or environmental harm or harm to human health. Towards the end of the class we talked and read about the Zebra Muscles they attatch to every object the started in Ontario and went down to the golf of mexico plugging pipes and hydro plants.