SA blogger and biology lecturer +Joanne Manaster along with her cohost from the Read Science! program Jeff Shaumeyer will host a live chat at noon EDT on Tuesday, April 22, with paleontologist Neil Shubin and his illustrator Kalliope Monoyios (who also blogs for SA). The discussion will focus on , "Your Inner Fish," a 3-part series currently airing on PBS based on Shubin's best-selling 2009 book by the same name.