For more than twenty years, our company has specialized in providing a variety of amphibians for research.  To supplement our business, we have dedicated our farms of some 370 acres to pond- breeding amphibians in order to provide secure adult populations of frogs and salamanders for our customers. While the development of amphibian populations has taken time, our efforts have been successful, and in recent years our amphibian eggs and larval forms have become popular in toxicological and biomedical investigations. Amphibian eggs are hardy, cold-tolerant, and can be arrested in development. Eggs and larvae ship well, and will develop in the laboratory. A variety of amphibian species, reasonably staged in development, are available from us year round, affording unique opportunities to the researcher.  For example, an investigator, working in spring and summer, could include up to a dozen species of amphibian larvae in a toxicological study with immediate relevance to the amphibian populations of the southern or south-central United States.

These are the most common amphibian species from our farms, with the availabilities of their eggs and larvae:

	Spring	Summer	Autumn	Winter
Tiger Salamander (Ambystoma tigrinum)	eggs-larvae	larvae		eggs	Eggs & larvae ship well, eggs refrigerate very well, taking weeks to develop.
Spotted salamander (Ambystoma maculatum)	eggs-larvae	larvae		eggs	Eggs as with Tiger salamander.
Red-spotted Newt (Notopthalmus viridescens)	larvae	larvae	larvae		Larvae ship & hold well, eggs are singly laid
Bullfrog (Rana catesbeiana)	eggs-tads	tadpoles and small bullfrogs	tadpoles and small bullfrogs	tadpoles and small bullfrogs	Eggs are very small, develop very quickly
Green Frog (Rana clamitans)	eggs, tadlets	tads, froglets	tads	tads	Like bullfrog
Southern Leopard Frog (Rana utricularia)	eggs, tads, froglets		eggs in Sept. most years	tads	Eggs strongly clumped, hold and ship well
Pickerel Frog (Rana palustris)	eggs, tads, froglets				Eggs strongly clumped, hold and ship well
Wood Frog (Rana sylvatica)	eggs, tads			eggs	Lays explosively, eggs develop very quickly. Not collected in all years.
Grey Treefrog (Hyla chrysoscylis)	eggs	eggs, tads	tads early autumn		Our favorite. Long egg-layings period. Eggs & tads ship well. Tads develop quickly.
Spring Peeper (Hyla crucifer)	Adults only
Cricket Frog (Acris crepitans)	eggs	tads	tads	some tads	Eggs develop quickly, tads develop slowly, with a distinctive black tail tip.
Chorus Frog (Pseud. triseriata)	eggs, tads				A puddle breeder, fast-developing and uncooperative.
Narrowmouth Toad (Gastro. carolinensis)		eggs, tads	tads		Tads readily identifiable.
American Toad (Bufo americanus)	eggs, tads	toadlets			All forms ship well.