. >> reporter: elephant blood from from schiffman's local zoo and the ringling brothers and barnum & is in town. >> the thought that our elephant could actually do something that could help pediatric cancer was an amazing one. >> reporter: you see, most humans have only two copies of a gene called p53 which kills cancerous cells. we only have two. elephants have around 40, and elephants hardly ever get cancer, so schiffman is -- >> looking for drugs that mimic the effect of having these extra copies of p53. >> reporter: schiffman is inspired in this bizarre collaboration with his pachyderm pals by his patience. >> to everyone, open their mouth and say ah. >> all: ah. >> ah, very good. >> reporter: whose lives one day could be saved by tonka, mabel, luna and assan. for "good morning america," nick watt, abc news, salt lake city. >> fascinating stuff and we thank nick for that. >>> and finally, a new way to express yourself on facebook. the site is testing six new emojis you can use instead of the simple like button. they are love, laughter, cheering, wow, sad and angry but dislike is