Evan Grant demonstrates the science and art of cymatics, a process for making soundwaves visible. Useful for analyzing complex sounds (like dolphin calls), it also makes complex and beautiful designs. Inspirational!
UNC-Asheville professor, Dee Eggers discusses dolphins as persons and ideas for protecting them and other species that face extinction. There has been a lot of discussions going on about this topic. TEDxAsheville has been hosting this talk on one of their events.