Sharks

http://news.nationalgeographic.com/news/2002/08/0802_020802_shark_2.html

http://www.nationalgeographic.com/magazine/2016/06/shark-species-family-tree-ocean-ecosystem-predator?utm_source=NatGeocom&utm_medium=Email&utm_content=inside_20160603&utm_campaign=Content&utm_rd=664761164 . Interesting clip from the Smithsonian Channel that I only could find of this page. http://gnli.christianpost.com/video/something-ate-this-shark-but-what-31377

Second graphic on this page is good and also from the Smithsonian Channel. http://www.businessinsider.com/mysterious-predator-attacks-great-white-shark-2014-6

Good long video on the subjects: []

This summary of the info is interesting and contains a spoiler for the documentary. []

Temperatures of sharks http://www.elasmo-research.org/education/white_shark/p_body_temp.htm oured-by-mystery-sea-monster-scientists-searching-for-beast-that-killed-9-foot-shark-video-121203/

My wife