Terrible Tyrannosaurs Author:Kathleen Weidner Zoehfeld Ages 4-7. The dinosaur we hate to love is here in all its terrible splendor. Why are we fascinated with it? Maybe it's what scientists know about these tyrant kings: six-inch-long teeth serrated like steak knives, weight about six tons, and awesome jaws that could take a full-grown cow as a mouthful. What scientists aren't really sure about is w... more »hether T-Rex was a ferocious hunter or a scavenger who fed on the sick and the dead. T-Rex may have had a large brain that could have given it super-sharp senses, and this might have given it an advantage as a hunter. Washburn's dramatic paintings with lots of purples and greens do a good job of highlighting our most familiar--and feared--dinosaur. Denia Hester