a dinosaur is a kind of reptile & a reptile is a kind of animal ->  a dinosaur is a kind of animal  a dinosaur is a kind of animal & if fossils of an animal or plant are found in a place then that animal or plant used to live in that place & fossils of dinosaurs are found in antarctica ->  dinosaurs used to live in antarctica  a dinosaur is a kind of reptile & a reptile is cold-blooded ->  dinosaurs are cold-blooded  a dinosaur is a kind of animal & dinosaurs are cold-blooded ->  dinosaurs are cold-blooded animals  dinosaurs are cold-blooded animals & cold-blooded animals cannot live in cold environments ->  dinosaurs cannot live in cold environments  dinosaurs used to live in antarctica & dinosaurs cannot live in cold environments -> antarctica was not a cold environment when dinosaurs used to live in antarctica