"Complete Meter Stick Optics Bench"

A rare complete skeleton and shell replica of this 130 million year old fossil turtle, a distant relative of the modern-day snapping turtle.

Dramatically preserved assemblage of 24 complete trilobites showing exceptional detail on a 13×15" matrix. Ohio.

Choice, well-prepped specimens of this distinctive "high-domed" fossil echinoid. Complete and detailed samples. Average size, 1 1/2"to 2" in diameter. Germany.

Sarcophaga bullata are gray flesh flies. These flies are reared on decaying flesh and pupate quickly, within 5 to 7 days from birth, to illustrate complete metamorphosis in Diptera.

Study the lifecycle of the brown house cricket (Acheta domesticus) with this complete culture kit ideal for behavioral studies, food for insectivorous animals, or both.

Yeast strains are ideal for genetic study because they are easy to grow and maintain, their life cycle is complete in approximately one week, and you can arrest different stages of the life cycle by growing it on different types of media.

Drosophila melanogaster, the common fruit fly, is widely used in genetic studies. They express a number of mutations such as eye, wing, and body mutations. Students can study sex-linked, recessive, and dominant mutations. Drosophila also makes an excellent live food for mantises, small reptiles, and amphibians. Drosophila demonstrates complete metamorphosis with egg, larva, pupa, and adult stages in its life cycle.

Large, complete Middle Cambrian trilobite, with long genal spines. It measures 7¹/₂" in length on an 8¹/₄×10¹/₂" matrix. Resin. Newfoundland.

This complete skeleton is an example of a primitive synaptosaurian reptile group known as nothosaurs. It measures 9¹/₂" in length on an 11³/₄×6¹/₄" matrix. Resin. Switzerland.

A spectacular, museum-quality example of the official Ohio state fossil, it is complete, down to the genal spines. It measures 9" in length on an 11³/₄"×10¹/₂" matrix. Resin. Ohio.