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The skin on its upper side is covered in small tubercles, the most pronounced of the genus Bombina. [9] Although it is typically referred to as a toad, the fire-bellied toad is not a true toad. [10] They can reach a length of about 3.8–5.1 centimetres (1.5–2.0 in), weighing about 28–57 grams (0.99–2.01 oz). [11]
The white dots catch and help attract the attention of the prey, luring them in. [7] After the prey is lured in close enough, the frog lunges out quickly and captures it using tongue protraction. These white dots are hidden on the under side of the frog during the day when they are not hunting.
Frogs must be able to move quickly through their environment to catch prey and escape predators, and numerous adaptations help them to do so. Most frogs are either proficient at jumping or are descended from ancestors that were, with much of the musculoskeletal morphology modified for this purpose.
The frogs are large, have powerful leaps, and inevitably escape after which they may wreak havoc among the native frog population. [49] Countries that export bullfrog legs include the Netherlands, Belgium, Mexico, Bangladesh, Japan, China, Taiwan, and Indonesia. Most of these frogs are caught in the wild, but some are raised in captivity.
Most research on the detection of surface waves has been done on the striped panchax, Aplocheilus lineatus. Surface wave detection by animals is the process by which animals, such as surface-feeding fish are able to sense and localize prey and other objects on the surface of a body of water by analyzing features of the ripples generated by objects' movement at the surface.
The wood frog makes contact with the prey with just the tip of its tongue, much like a toad. [16] A more extensive amount of tongue surface is applied in the feeding strikes of these other frog species, with the result that usually the prey is engulfed by the fleshy tongue and considerable tongue surface contacts the surrounding substrate.
A single dark stripe runs along each side of the head and through the eye. [7] There is no webbing between the hind toes, and the fingers are not webbed. [8] These frogs have a snout length of 5.5 mm, and thighs that can reach up to 14.8 mm. [9] Leiopelma hamiltoni is a very small frog species, with males being even smaller than females.
After the common frog (Rana temporaria), the edible frog (Pelophylax esculentus) and the smooth newt (Lissotriton vulgaris), the common toad is the fourth most common amphibian in Europe. [15] It is found throughout the continent with the exception of Iceland, the cold northern parts of Scandinavia , Ireland and a number of Mediterranean islands.