TR, by Byron Lester

The touching story of an unlikely friendship between an eight-year-old girl and a Tyrannosaurus Rex. Georgia Livingston is a small, freckled-faced girl with a love for animals, who lives with her father in the Blue Mountains outside of Sydney, Australia. When she finds an egg in the woods behind her house, she decides to lovingly care for it; and surprisingly, it hatches into a baby T-Rex!