Dinosaurs!

http://content.scholastic.com/browse/article.jsp?id=4755

here's a few of my favorites:
Q: Which dinosaur is the largest?
A: The biggest dinosaur is probably ultrasauros. We only have a few bones of this late Jurassic (140 million years ago) plant-eater from Colorado, but the bones show an animal who was six-stories high and may have weighed more than 50 tons. A four-legged plant-eating dinosaur found recently in Argentina, argentinasaurus, may have been even heavier than ultrasauros. If it was a brachiosaur like ultrauros then it probably was the biggest, but if it was a titanosaur, another kind of big plant-eater common in South America, it wouldn't have been so bulky. Q: Which dinosaurs were bigger - plant-eaters or meat-eaters?
A: Plant-eaters by far. T. rex and giganotosaurus, the biggest meat-eaters, were 7 or 8 tons and 45 feet long. The biggest plant-eaters were100 tons and 110 feet long!
Q: What is the smartest dinosaur? What dinosaur had the largest brain? The smallest brain?
A: The smartest dinosaur, if you compare body size to brain size (a rough measurement of intelligence) is troodon. Troodon was a meat-eater the size of a man, with a brain as big as an avocado pit. It was not only the smartest dinosaur, but the smartest animal of dinosaur times, including our ancestors - the mammals of the Mesozoic Era. The biggest brained dinosaur of all was probably T. rex, since it was such a huge animal. Its brain was about as big as ours but it was many times bigger than us. Stegosaurus was a tiny-brained dinosaur compared to its size. Its brain wasn't much bigger than a ping pong ball and its body was the size of a truck.
Q: Which dinosaur has the longest neck?
A: The longest necked dinosaur was the 90-foot mamenchisaurus, a four-legged plant-eater from China. Its neck alone was 32 feet long - nearly as long as a school bus.