[["An adult Tyrannosaurus rex had a brain that weighed approximately 1 kilogram (2.2 lbs), about half of the size of an adult humans", 106.0], ["A T-Rex\u2019s brain is, based on estimates of size of the brain cavity in the skull, about the size of a modern gorilla\u2019s brain. Of course, the T-Rex\u2019s brain was shaped a bit differently because of differences in function. Some recent research suggests T-Rex was as smart as a chimp.", 19.0]]
how big was tyrannosaurus rex's brain
animals,tyrannosaurus