Dolphins set traps to catch fishTo play this video you need to enable JavaScript in your browser.This video can not be playedDolphins set traps to catch fishCloseDolphins catch fish by using sponges to block escape routes in coral, setting clever traps.Watch the Tropical Seas episode of Blue Planet III on BBC iPlayerMore from Blue Planet IIIPublished8 hours agoShareclose panelShare pageCopy linkAbout sharingRead description