Valentine's love hearts are boring! Why not explore the 6 most fascinating hearts in the animal kingdom? Meet the owners of the fastest, the biggest, the most unusual and the most helpful hearts in the world...and a bonus exploding whale. Because nothing says romance like a bloody, beating explanted heart. Thanks to Sam Yammine for asking the question that prompted this video. She is awesome, go follow her! https://www.instagram.com/science.sam https://twitter.com/samanthazy?lang=en ____ Go follow me too. Have a heart ffs, it's #heartmonth http://www.medlifecrisis.co.uk/ https://twitter.com/medcrisis https://www.facebook.com/Medlifecrisis https://www.instagram.com/medcrisis ____ Multiple clips from various sources (labels left in): Alien Heart - Phineas and Ferb (Disney) University of Michigan National Geographic (a few times) BBC Earth Unplugged BBC (a whole bunch of times - damn I love the BBC) Scubazoo Barcroft TV Royal Ontario Museum BeFree and Travel Smithsonian Channel BackOnElectone Deep Look Ammonite Moses Ong Disney Wellcome Sanger Institute HHMI Biointeractive ____ End music: Tango de Manzana by Kevin MacLeod. Creative Commons licence, downloaded from http://incompetech.com/music/royalty-free/index.html?collection=15&page=1