Host Neil deGrasse Tyson will tackle one of science's major challenges in each video, framed as a simple question that ordinary people wonder and worry about. Neil will guide us as he explores dramatic discoveries and the frontiers of research that connect each central, provocative mystery. Episode includes: 1) How Smart Are Dogs? - Meet an extraordinary boarder collie and other dogs changing our view of canine intelligence. 2) How Smart Are Dolphins? - These brainy marine mammals can "read," plan ahead, and communicate in astounding ways. 3) How Smart Is an Octopus? - Hold your fork-octopuses and other mollusks are more intelligent than you may think. 4) Profile: Irene Pepperberg & Alex - One woman's 30-year relationship with an African grey parrot transformed our understanding of bird intelligence.
