My Inner Fish

In class we watched two episodes out of a series of three, "My Inner Fish", this gave more insight into the evolution of how we came to be and how our ancestors evolved. In the first video they taught us how fish evolved onto land and transitioned from fish into amphibian-like reptiles. One question from our video stuck out to me and that was,  "What did Tiktaalik use its neck for in the water?". They then went on to explain that since the animal had a neck when it was in the water it was able to see it's predators and food, this gave it an advantage. This goes to show that even small evolutionary steps like that affect everyone and everything so greatly. Another question that was asked during the second video was, "Why are mass extinctions important?" Mass extinctions prove to be important in general to almost every species, but certainly to us. They give way for other species to rise and take control of the Earth. The mass extinction was essential the mammals survival, growth, and success. Again this extinction was crucial to humans being and it's importance is undermined. This video has given me a new outlook on evolution and how we actually came from animals that seem so far away from us.