The Angelshark is an ambush predator, relying on camouflage to surprise its prey.
The pig-nosed turtle is prehistoric. This turtle diverged from all other species more than 140 million years ago.
Chinese Giant Salamander
The largest amphibian in the world, this salamander can grow to the size of an adult human.
Pillar coral possesses one of the most distinct morphologies of any coral.
Pygmy Three-toed Sloth
The smallest of the all the sloth species, the pygmy sloth was only described in 2001
The Philippine Eagle is one of the world’s largest, most powerful birds of prey.
TOP EDGE Amphibians
Archey’s frog is the world’s most Evolutionarily Distinct and Globally Endangered amphibian species.
Chinese Giant Salamander
The Chinese giant salamander is the world’s largest amphibian, growing up to 1.8 metres long, with a large tail comprising almost 60% of the body length.
The purple frog (or pig-nosed frog) spends much of its life underground, emerging briefly for a few days each year at the start of the monsoons to breed.
Seychelles Palm Frog
The Critically Endangered Seychelles palm frog was only described as a new species in 2002, and details of its breeding behaviour are currently unknown.
Thomasset’s Seychelles Frog
Thomasset’s frog is the largest of the Seychelles’ native frogs, reaching a maximum length of 55 mm, and is Critically Endangered.
Mount Oku Caecilian
The Mount Oku caecilian occurs in an area of just 49km²!
Sharp Snouted Day Frog
With only three individuals reported since 1994, there is doubt as to whether this species is still surviving in the wild.
Eungella Day Frog
Until January 1985, this species was considered to be common across its range. However, it was at this time the first indications of decline were recorded, first at lower altitudes and then throughout the whole range.
Kroombit Tinker Frog
The Kroombit tinker frog is a small frog from northeastern Australia that reaches lengths of only 2.5 cm.
Northern Tinker Frog
The Critically Endangered Northern tinker frog is relatively small, growing to a maximum length of only 3 cm.
Barrio’s frogs are powerful and fast moving, often jumping to the middle of a stream and seeking shelter under submerged stones or along the stream bank if threatened.
Table Mountain Ghost Frog
The Critically Endangered Table Mountain ghost frog is found only on the slopes of Table Mountain, South Africa, occupying an area of only 4 km².
Hula Painted Frog
The Critically Endangered Hula painted frog, of Israel, was believed extinct until its rediscovery in November 2011.
Redbelly Egg Frog
The redbelly egg frog is known only from a tiny area of the Cameroonian Highlands. This species has been found in a variety of places within its montane forest habitat, including streams, ground holes, humus, gravel, root masses and dense undergrowth.
Bamboutos Egg Frog
This Critically Endangered frog is one of around 15 species collectively known as “egg frogs”, and can be found in the Bamenda Highlands of western Cameroon.
Wild’s Egg Frog
Wild’s egg frog was described in 2000, but little is known about this Critically Endangered EDGE species.
Northern Darwin’s Frog
The Northern Darwin’s frog is one of only two frogs in the world which exhibit ‘mouth brooding’ parental care, whereby the young undergo part of their development in the parent’s mouth. It is possible this species is now extinct.
Bale Mountains Treefrog
When threatened, this Critically Endangered frog inflates its body with air and stands raised on outstretched limbs to appear larger.
Togo Slippery Frog
Reaching moderate sizes of 75-85 mm, it is not immediately obvious that the Togo slippery frog is a close relative of the world’s largest frog, the Goliath frog.
The Fujian frog is one of only five species in its genus, Glandirana, and is endemic to the eastern parts of the Fujian province, China.
Finca Chiblac Salamander
The Critically Endangered Finca Chiblac salamander had not been recorded for over 30 years until its rediscovery in 2009.
Bornean Flat-headed Frog
The Endangered Bornean flat-headed frog is the world’s only known lungless frog, and respires entirely through its skin!
The Critically Endangered toad-skinned frog is endemic to the Western Ghats of India. The family of frogs to which this species belongs diverged from all other amphibians over 80 million years ago.
Preciously an abundant species the Paramo toad is now considered to be uncommon and hasn’t been seen on any surveys since 2005!
Gundia Indian Frog
The Critically Endangered Gundia Indian frog is a ground-dwelling species, living on the forest floor of a single, small area of the Western Ghats.
The Critically Endangered Rhombophryne matavy is thought to be endemic to the Forêt d’Ambre Special Reserve in the extreme north of Madagascar.
Ayacucho Andes Frog
The Critically Endangered Ayacucho Andes frog is endemic to Peru, where it inhabits montane cloud forests.
The two-lined caecilian lives in just 777km²!
The Critically Endangered Richmond’s coqui is endemic to Puerto Rico, and lives in mesic forests in several locations across the island.
Cannatella’s Andes Frog
Cannatella’s Andes frog is one of around twelve species in its genus, Hypodactylus. These species were recently defined as a distinct unit from the vast Eleutherodactylus genus that at one point contained over 700 frog species!
Noblella madreselva occurs in an area measuring just 10km².
Itatiaia Highland Frog
This species is part of the family Craugastoridae, which is believed to have diverged from their closest living relatives over 50 million years ago, before the major Andean uplift.
Arboreal Splayfoot Salamander
Before it was recorded again in 2010, only one individual of the Critically Endangered arboreal splayfoot salamander had been found since the 1980s.
Pigmy Splayfoot Salamander
The Critically Endangered pigmy splayfoot salamander could be considered a master of defence, as it employs a number of different techniques to ward off predators.
The Critically Endangered puddle frog Phrynobatrachus intermedius is a highly cryptic species endemic to Ghana, and is known from very few specimens.
Myers’ Suriname Toad
Myers’ Suriname toad is a truly bizarre EDGE amphibian. This Endangered amphibian from Panama incubates its eggs under the skin on its back!
Spiny Puddle Frog
The Critically Endangered spiny puddle frog is a miniature species of puddle frog, with adults barely reaching 2 cm long! The species name is derived from the Cameroonian phrase ‘chuku chuku’, meaning ‘spiny’, referring to the minute spinules visible on males.
Cave Splayfoot Salmander
The Critically Endangered cave splayfoot salamander had not been seen for 73 years before its rediscovery in 2010!
Kirthisinghe’s Rock Frog
The Critically Endangered Kirthisinghe’s rock frog is a very rare species endemic to the island of Sri Lanka.
Common Splayfoot Salamander
Contrary to its common name, the common splayfoot salamander has undergone a recent, catastrophic population decline and has not been seen since the 1980s.
The Bleeding toad became very rare in 1987, following the eruption of Mount Galunggung.
Du Toit’s Torrent Frog
There have been numerous surveys to locate Du Toit’s torrent frog since its last record in 1962, but all attempts have failed to find the species.
All individuals of the beautiful nursery frog are found in one location, Thornton Peak in Queensland, Australia, above 1,100 metres above sea level.
Bigfoot Splayfoot Salamander
The Critically Endangered bigfoot splayfoot salamander is endemic to Mexico and found in damp caves surrounded by forest at around 2,4000 metres above sea level.
Gardiner’s Seychelles Frog
Gardiner’s Seychelles frog is one of the world’s smallest frog species, with adults reaching the size of just 1 cm! This species is ground-dwelling and forages at night for small invertebrates such as mites.
This very rare species is endemic to Madagascar and is only found in two small habitat fragments in the vicinity of Ambohitantely.
Charles Darwin’s Frog
Charles Darwin’s frog is only known from Mount Harriet and Saddle Peak in the Andaman Islands of India.
Baw Baw Frog
In 1985 the adult male population of Baw Baw frogs was estimated to be over ten thousand individuals.
The Seychelles frog is an incredibly tiny frog, with males reaching a maximum length of just 15 mm.
Cophyla karenae is endemic to Madagascar, where it is only known from the Betampona Strict Nature Reserve.