ICY SCIENCE: SCIENCE SPACE ASTRONOMY Spring 2014

70 To summarize the observed facts of Evolution: • Matching of fossils of extinct animals to that of modern animals. • Examples of natural selection of species adapting to their surroundings. Survival of the fittest is a biological mechanism. Birds will occasionally kill their young if they are weak so the surviving ones have more food. When a Cheetah makes a kill, it’s the prey which runs the slowest which gets killed. This also explains why 99% of all life which has lived on Earth is now extinct. • Examples of artificial selection (Wolves to Dogs) • No two individuals are exactly alike. Resources: 1. Life in the Universe By J. Bennett, S. Shostak 2. http://evolution.berkeley.edu/ WORDS: Henna Khan @henna_khan Astronomy/ Science Communicator, Skeptic, Travel Freak, Proponent of Disrupt Education ICY SCIENCE | QTR 2 SPRING 2014

ICY SCIENCE: SCIENCE SPACE ASTRONOMY Spring 2014 | Page 70