Turns Out There Were Once Billions of T. Rexes, and They Hunted Their Prey in Terrifying Packs Posted byKenny Herzog April 20, 2021 Leave a comment on Turns Out There Were Once Billions of T. Rexes, and They Hunted Their Prey in Terrifying Packs Scientists have discovered that the most tyrannical dinosaur was more omnipresent and socially inclined than previously imagined,