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three-dimensional – adj. having or seeming to have length, width, and depth
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
preserved – adj. kept in good condition over a long period of time
skin – n. the natural outer layer of tissue that covers the body of a person or animal
pigment – n. a natural substance that gives color to animals and plants
circumstances – n. the way something happens; the specific details of an event
pattern – n. a repeated form or design especially that is used to decorate something
