Zoology collections: Bird study specimens (380), mammal study specimens (304), reptile and amphibians (847), fish (567), insects (22,204), eggs (106), nests (58), mounted birds (73), mounted mammals (36), mounted fish (5), seashells (6,905). The vertabrate collections have a local emphasis. The sheashells are worldwide in scope.
Earth science: Paleontology (875), including 450 vertebrate and 250 invertebrate; 175 botany; mineralogy (1,250); archeology (1,200). The earth science collections are primarily representative of the North Texas area.
Botany: Plants specimens (769). This material is from the wildlife sanctuary and adjacent tall grass prairie.
Cultural: Nature prints (200), oriental art (150): Indian artifacts (250), quilts (30), nature decorative art (800). These collections were from the Bessie Heard collections and are part of the museum's mission.
Library: Reference/resource books plus periodicals, magazines and papers (2,500), slides (5,220). Main subject areas covered are natural history, geology, paleontology, environmental education, and museum reference.
Wildlife sanctuary: 289-acre riparian, wetlands, floodplain forest, native prairie wildlife habitat adjacent to museum; species of birds, mammals and reptiles and amphibians (240); speices of wildflowers (150); species of trees and shrubs (50).