drawer – n. a box that slides into and out of a piece of furniture (such as a desk) and that is used to store things

fossil – n. something (such as a leaf, skeleton, or footprint) that is from a plant or animal which lived in ancient times and that you can see in some rocks

mammal – n. a type of animal that feeds milk to its young and that usually has hair or fur covering most of its skin

skull – n. the structure of bones that holds up the face and head of a human

extinct – adj. a creature that no longer exists

paleontologist – n. the science that deals with the fossils of animals and plants that lived very long ago especially in the time of dinosaurs