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The temnospondyl Eryops had sturdy limbs to support its body on land Red-eyed tree frog (Agalychnis callidryas) with limbs and feet specialised for climbing Japanese giant salamander (Andrias japonicus), a primitive salamander The bright colours of the common reed frog (Hyperolius viridiflavus) are typical of a toxic species Wallace's flying frog (Rhacophorus nigropalmatus) can parachute to ...
The archaeobatrachians are the most primitive of frogs. These frogs have morphological characteristics which are found mostly in extinct frogs, and are absent in most of the modern frog species. Most of these characteristics are not common between all the families of Archaeobatrachia, or are not absent from all the modern species of frogs.
The world's largest frog is the goliath frog of West Africa—it can grow to 15 inches (38 centimeters) and weigh up to 7 pounds (3.2 kilograms). One of the smallest is the Cuban tree toad, which ...
Italian tree frog, Hyla intermedia LC and: [n 1] Po's tree frog, Hyla perrini (southern Europe) [5] [6] Stripeless tree frog, Hyla meridionalis LC (southern Europe) Iberian tree frog, Hyla molleri (Iberian Peninsula, France) [2] Sardinian tree frog, Hyla sarda LC; Family: Ranidae (true frogs) Typical frogs. Common frog, Rana temporaria LC and ...
Some 50 to 100 extant species are now placed in this genus by various authors; many other species formerly placed in Rana are now placed elsewhere. Frost [3] restricted Rana to the Old World true frogs and the Eurasian brown and pond frogs of the common frog R. temporaria group, [4] although other authors disagreed with this arrangement.
Frogs produce a wide range of vocalisations, particularly in their breeding season, and exhibit many different kinds of complex behaviors to attract mates, to fend off predators and to generally survive. Frogs are valued as food by humans and also have many cultural roles in literature, symbolism and religion.
A few species deposit eggs on land or bypass the tadpole stage. Adult frogs generally have a carnivorous diet consisting of small invertebrates, but omnivorous species exist and a few feed on plant matter. Frog skin has a rich microbiome which is important to their health. Frogs are extremely efficient at converting what they eat into body mass.
The family Mantellidae is composed of three extremely diverse groups of frogs, across three subfamilies: the Mantellinae (Laurent, 1946) are typically terrestrial or semi-aquatic frogs, the Laliostominae (Vences & Glaw, 2001) are terrestrial, fairly large frogs, and the Boophinae (Vences & Glaw, 2001) are arboreal tree frogs, sharing far more physical and behavioral characteristics with true ...