underweight person than an overweight person, and higher in infants than adults. The same problem is encountered when dealing with marine mammals, which may have considerable body fat masses. Some researchers therefore prefer lean body weight to brain mass as a better predictor. See also Cranial capacity Encephalization List of animals by number of neurons Schauenberg's index References External links https://web.archive.org/web/20050325105538/http://www.wsu.edu/~taflinge/mindwork/mawint1.html A graph of body mass vs. brain mass "Bligh's Bounty" — Stephen Jay Gould Suzana Herculano Houzel: What is so special about the human brain TED talk, June 2013. Animal cognition Mass Animal intelligence