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An adult frog has a stout body, protruding eyes, anteriorly-attached tongue, limbs folded underneath, and no tail (the tail of tailed frogs is an extension of the male cloaca). Frogs have glandular skin, with secretions ranging from distasteful to toxic.
The nictitating membrane of a masked lapwing as it closes over the left eye, originating from the medial canthus. The nictitating membrane (from Latin nictare, to blink) is a transparent or translucent third eyelid present in some animals that can be drawn across the eye from the medial canthus to protect and moisten it while maintaining vision.
Three of the toes on each foot have conspicuous black claws. The frog's eyes are on top of the head, looking upwards. The pupils are circular. They have no moveable eyelids, tongues (rather it is completely attached to the floor of the mouth [6]) or eardrums (similarly to Pipa pipa, the common Suriname toad [7]). [8]
Adult frogs do not have tails and caecilians have only very short ones. [69] Didactic model of an amphibian heart. Salamanders use their tails in defence and some are prepared to jettison them to save their lives in a process known as autotomy. Certain species in the Plethodontidae have a weak zone at the base of the tail and use this strategy ...
The palpebral ossicles were small boney shingles embedded within the eyelid to protect the eye. ... which had a head about an inch in length (2.5 centimeters). But many frogs today have bodies ...
Agalychnis callidryas is an arboreal frog with long limbs and webbed toes. They mate and reproduce near ponds, and are therefore found in lowland wet areas found in tropical forests. [4] Like all the frogs in its genus, they are nocturnal and do most of their hunting for insects at night.
During their surveys, researchers found 17 “pumpkin”-colored frogs, the study said. Other scientists had encountered these frogs before but no one had studied them in depth.
The mating period of these frogs is during the fall and winter seasons. These frogs call usually during the morning and mid-afternoon hours. [15] Males of this species do not attract females with croaks, instead producing a sharp clicking sound by snapping the hyoid bone in their throats. [16] The clicking sound resembles metallic noises.