The McGregor Herbarium houses approximately 400,000 specimens accumulated by Botany staff during the past 150 years.
Vascular Plant database
The Entomology collections at the KU Biodiversity Institute are estimated to contain over 4.8 million pinned and labeled specimens.
Herpetology houses one of the largest collections in the world (340,000 specimens representing more than 5000 species from 156 countries).
The Ichthyology collection contains more than 680,000 specimens and approximately 11,000 tissues of fishes from around the world
The invertebrate paleontology collection is ranked among the top 10 largest fossil invertebrate collections in the country and has over 900,000 fossil invertebrate and microfossil specimens from all over the world, including more than 6,000 type specimens.
The mammal collection is one of the world's largest (the fifth largest mammal collection in North America and the second largest university collection in the world).
The Ornithology collection is the third largest avian osteological collection in the world, and the second most diverse avian tissue collection in the world. The study skin collections total > 60,000 specimens.