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Introduction

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Selected amphibian type

Spotted salamander, Ambystoma maculatum

Salamanders are a group of amphibians typically characterized by their lizard-like appearance, with slender bodies, blunt snouts, short limbs projecting at right angles to the body, and the presence of a tail in both larvae and adults. All ten extant salamander families are grouped together under the order Urodela from the group Caudata. Urodela is a scientific Latin term based on the Ancient Greek οὐρά δήλη: ourà dēlē "conspicuous tail". Caudata is the Latin for "tailed ones", from cauda: "tail".

Salamander diversity is highest in eastern North America, especially in the Appalachian Mountains; most species are found in the Holarctic realm, with some species present in the Neotropical realm. Salamanders never have more than four toes on their front legs and five on their rear legs, but some species have fewer digits and others lack hind limbs. Their permeable skin usually makes them reliant on habitats in or near water or other cool, damp places. Some salamander species are fully aquatic throughout their lives, some take to the water intermittently, and others are entirely terrestrial as adults.

This group of amphibians is capable of regenerating lost limbs as well as other damaged parts of their bodies. Researchers hope to reverse engineer the regenerative processes for potential human medical applications, such as brain and spinal cord injury treatment or preventing harmful scarring during heart surgery recovery. The remarkable ability of salamanders to regenerate is not just limited to limbs but extends to vital organs such as the heart, jaw, and parts of the spinal cord, showing their uniqueness compared to different types of vertebrates. ⁤⁤This ability is most remarkable for occurring without any type of scarring. ⁤⁤This has made salamanders an invaluable model organism in scientific research aimed at understanding and achieving regenerative processes for medical advancements in human and animal biology. (Full article...)

Selected frog article

Cane toad (R. marina)

A true toad is any member of the family Bufonidae, in the order Anura (frogs and toads). This is the only family of anurans in which all members are known as toads, although some may be called frogs (such as harlequin frogs). The bufonids now comprise more than 35 genera, Bufo being the best known. (Full article...)

Selected salamander article

Spotted salamander, Ambystoma maculatum

Salamanders are a group of amphibians typically characterized by their lizard-like appearance, with slender bodies, blunt snouts, short limbs projecting at right angles to the body, and the presence of a tail in both larvae and adults. All ten extant salamander families are grouped together under the order Urodela from the group Caudata. Urodela is a scientific Latin term based on the Ancient Greek οὐρά δήλη: ourà dēlē "conspicuous tail". Caudata is the Latin for "tailed ones", from cauda: "tail".

Salamander diversity is highest in eastern North America, especially in the Appalachian Mountains; most species are found in the Holarctic realm, with some species present in the Neotropical realm. Salamanders never have more than four toes on their front legs and five on their rear legs, but some species have fewer digits and others lack hind limbs. Their permeable skin usually makes them reliant on habitats in or near water or other cool, damp places. Some salamander species are fully aquatic throughout their lives, some take to the water intermittently, and others are entirely terrestrial as adults.

This group of amphibians is capable of regenerating lost limbs as well as other damaged parts of their bodies. Researchers hope to reverse engineer the regenerative processes for potential human medical applications, such as brain and spinal cord injury treatment or preventing harmful scarring during heart surgery recovery. The remarkable ability of salamanders to regenerate is not just limited to limbs but extends to vital organs such as the heart, jaw, and parts of the spinal cord, showing their uniqueness compared to different types of vertebrates. ⁤⁤This ability is most remarkable for occurring without any type of scarring. ⁤⁤This has made salamanders an invaluable model organism in scientific research aimed at understanding and achieving regenerative processes for medical advancements in human and animal biology. (Full article...)

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Picture slideshow

Image 1Southern Brown tree frog
Image 2New England tree frog
Image 3Panamanian golden frog
Image 4Common toads during amplexus
Image 5Frogs
Image 6American toad
Image 7Fire salamander
Image 8Edible Frog
Image 9Duttaphrynus melanostictus
Image 10Agalychnis callidryas
Image 11Fire salamander
Image 12Fire-bellied toad
Image 13Blue Mountains tree frog
Image 14Agile frog
Image 15Italian tree frog
Image 16Limosa harlequin frog
Image 17Common frog
Image 18Golden toad
Image 19White-lipped tree frog
Image 20Fire salamander
Image 21Epirus water frog
Image 22Ecnomiohyla rabborum
Image 23Balearic green toad
Image 24Spanish painted frog
Image 25Lithobates clamitans
Image 26Atelopus certus
Image 27Poison dart frog
Image 28Leaf green tree frog
Image 29Male Smooth Newt (Lissotriton vulgaris aka Triturus vulgaris) during breeding season in the Netherlands.
Image 30Limnodynastes dumerilii
Image 31Litoria chloris
Image 32Emerald-eyed tree frog
Image 33Albanian water frog
Image 34Surprise, its an amphibian. This is a genus of South American Caecilians, blind and snake-like, which hunt through leaf litter. Photo from Wildsumaco Reserve, Ecuador.
Image 35Phantasmal poison frog
Image 36Eastern newt
Image 37Blue poison dart frog
Image 38Magnificent tree frog
Image 39Marsh frog
Image 40Iberian midwife toad
Image 41Dendropsophus microcephalus

Selected toad article

Werneria, also known as the torrent toads or smalltongue toads, is a small genus of "true toads", family Bufonidae. They are found in western Central Africa (Equatorial Guinea, Gabon, and Cameroon), with the greatest species richness in the Western High Plateau of Cameroon. The species generally have restricted or patchy distributions and are considered threatened. (Full article...)

Selected caecilian article

Typhlonectes natans

Typhlonectidae, also known as aquatic caecilians or rubber eels, are a family of caecilians found east of the Andes in South America.

They are viviparous animals, giving birth to young that possess external gills. Of the five extant genera in the family, Atretochoana, Potamotyphlus and Typhlonectes are entirely aquatic, while Chthonerpeton and Nectocaecilia are semi-aquatic. Atretochoana reaches 100 cm (39 in) in length, but other species in the family range from 20 to 60 cm (7.9–23.6 in). A sixth typhlonectid genus, Ymboirana, was recently described and is known exclusively from fossil material. (Full article...)