Biology:
- North American Mammals: Deer, elk, moose, bison, pronghorn, bighorn sheep and more
- Old World Antelope: A broad variety of members of this spectacular old world family
- Skeletons: A 38-foot California Gray Whale, manatee, horse and others
- Skulls: Skulls of living and extinct animals from around the world.
- Birds: Mounts of common and unusual birds in Room 110
- Mammal Predators: Big cats of the world
- North American Bears: Full-mount Polar, Alaskan Brown, Grizzly and Black Bears
- Marine Mammals: Whales, manatee, walrus, otter and others
- European & Asian Mammals: Includes deer of the world
- African Mammals: Elephant, black and white rhinos, warthog and others
Paleontology and Geology:
- Gomphothere: A four-tusked elephant - excavated and restored as it was unearthed
- Cenozoic Mammals: A variety of fossil mammals unearthed from western states and locally
- Dinosaurs: Fossils and replicas of bones and complete life-sized models
- Pachycephalosaur and Triceratops skulls found on field trips
- Theropod dinosaur bone found nearby - a first in northern California
- Molluscs: A sampling of giant molluscs of the past. Clams, ammonites, etc.
- Fossils galore! Trilobites, tortoises, giant tortoise, wave ripples, footprints, birds and reptiles
- Life Through Time: Fossils and replicas from the Precambrian through the Cenozoic
- Paleozoic Plants: Fossils of giant plants of the Carboniferous
- Minerals: A spectacular exhibit of common and rare minerals
- Seismograph: Recording earthquake activity in the West and beyond
- Tar lump: Bones from animals that were trapped and died in a tar pit 4000 to 8000 years ago.