i did not just make up "2.6 quadrillion" for the number of cells in an adult t-rex's body. PLEASE. i took an estimate for the average human (30 trillion), then multiplied it by (the estimated weight of an adult t-rex divided by the average weight of an adult human), which produced an estimate of 2,636,505,637,500,000 cells. this talking dinosaur comic respects SCIENCE