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Common frog (Rana temporaria) tadpole. A tadpole or polliwog (also spelled pollywog) is the larval stage in the biological life cycle of an amphibian.Most tadpoles are fully aquatic, though some species of amphibians have tadpoles that are terrestrial.
Wood frogs (Lithobates sylvaticus) are generally around 3 inches long with brown or grey bumpy skin.Their distinguishing features are a black ‘robber’s mask’ on their face and a green-yellow ...
Pseudis paradoxa, known as the paradoxical frog or shrinking frog, is a species of hylid frog from South America. [2] Its name refers to the very large—up to 27 cm (11 in) long— tadpole (the world's longest), which in turn "shrinks" during metamorphosis into an ordinary-sized frog, only about a quarter or third of its former length.
Some arboreal frogs reduce water loss by having a waterproof layer of skin, and several South American species coat their skin with a waxy secretion. Other frogs have adopted behaviours to conserve water, including becoming nocturnal and resting in a water-conserving position. Some frogs may also rest in large groups with each frog pressed ...
Researchers have begun to build artificial whiskers of a variety of types, both to help them understand how biological whiskers work and as a tactile sense for robots. These efforts range from the abstract, [ 51 ] through feature-specific models, [ 52 ] [ 53 ] to attempts to reproduce complete whiskered animals in robot form (ScratchBot [ 54 ...
In frogs and toads, the tympanum is a large external oval shape membrane made up of nonglandular skin. [2] It is located just behind the eye. It does not process sound waves; it simply transmits them to the inner parts of the amphibian's ear, which is protected from the entry of water and other foreign objects.
Aug. 28—For the fourth time, hundreds of endangered frogs were released into the Columbia National Wildlife Refuge with the intent to revitalize their population. The nearly 400 northern leopard ...
Phyllomedusa camba or the black-eyed monkey frog is a species of frog in the subfamily Phyllomedusinae. It is found in Bolivia, Brazil, and Peru. [2] It has been observed between 280 and 1000 meters above sea level. [3] [1] The adult frog measures 60.8 mm (2.39 in) to 69.6 mm (2.74 in) in snout-vent length. It has disks on its toes for climbing.