Ghost frogs live in swift-moving mountain streams in South Africa.

[4][5] Family Heleophrynidae Ghost frogs have morphological adaptations suited to surviving on the rocks around these streams.

They are medium-sized frogs, reaching a length of 6 cm (2.4 in), with flat bodies, enabling them to climb inside rocky crevices.

With the help of the labial teeth the tadpoles contain in their mouths, the mouthparts are modified into sucking discs, to allow them to cling to substrates, and remain still while they are feeding.

[3] On January 21, 2008, Evolutionarily Distinct and Globally Endangered (EDGE) identified nature's most "weird, wonderful and endangered species", stating that "the EDGE amphibians are amongst the most remarkable and unusual species on the planet and yet an alarming 85% of the top 100 are receiving little or no conservation attention."