What Might Extraterrestrial Life Be Like?

Question: If we find ever life on other planets, what will it be like? Check out the videos below and then create your own alien life. What would this creature look like? How would it breathe? Eat? Would it live on a cold or hot planet? With heavy or light gravity? What sort of environment would it have to interract with?

Are We Alone?

Dr. Seth Shostak of SETI (Search for Extraterrestrial Intelligence) posts podcasts of his radio program on his website. He explains the challenges and methodology that scientists use to discover signs of life on other worlds. Check out his show here:
http://radio.seti.org/episodes/Carbon_Your_Enthusiasm