For example, some toads and terrestrial ... intracellular freezing is lethal for all but a few species (Lee 2010, Murphy 1983). Ectotherms vary markedly in their limits of freeze tolerance.

Of the many species alive today, some are highly endangered. Turtles are ectotherms—their internal temperature varies according to the ambient environment, commonly called cold-blooded.

Dr Gerardo Garcia, Chester Zoo’s Head of Ectotherms ... Desertas Islands is a perfect example of international cooperation to save critically endangered species, following an integrated ...