In 1989 a project commenced to re-introduce the country's rarest amphibian, the Natterjack Toad, to Hengistbury Head.

Since 1995, offspring from captured examples of this extremely rare amphibian have been released into the wild to help stabilize the remaining population.

The Mississippi gopher frog is regarded as rarest amphibian in North America.

Secretive and rare stream-dwelling amphibians are difficult to find and study.

Rare, endangered and extinct species of the Sound include the Eastern spadefoot, a rare, toadlike amphibian that hasn't been recorded in the area since 1935.

The forest area of Paradisbakkerne is ecologically diverse, and contains a rich flora and fauna, including a number of rare amphibians and reptiles.

Stan began to look for the even rarer amphibians.

The presence of mangroves and freshwater streams in Tung Chung provides excellent ecologically valuable habitats for freshwater fish species, dragonflies and rare amphibians.

One species of interest is the limestone salamander, an extremely rare amphibian whose only habitat is in the Merced Canyon downstream of Yosemite Valley.

Before then, in 1986, a small population of them was found, thus proving that these rare and endangered amphibians were not extinct.