Search results
Results from the WOW.Com Content Network
The dark web has often been confused with the deep web, the parts of the web not indexed (searchable) by search engines. The term dark web first emerged in 2009; however, it is unknown when the actual dark web first emerged. [11] Many internet users only use the surface web, data that can be accessed by a typical web browser. [12]
Tadpoles, in contrast, start around 14 mm to 16 mm in length and later grow to around 37 mm after metamorphosing. [2] The Trinidad poison frog has a well-defined and solid pigmented collar and a solid brown dorsum. It has well defined pale dorsolateral stripes and dark pigmentation around the external margin of its soles and palms.
[5] [9] [10] It is also a cannibalistic species—the male African bullfrog is known for occasionally eating the tadpoles he guards, [11] and juveniles also eat tadpoles. [12] An African bullfrog kept at the Pretoria Zoo in South Africa once ate 17 juvenile Rinkhals snakes ( Hemachatus haemachatus ).
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.
Most species (e.g. Blyth's river frog L. blythii or the fanged river frog L. macrodon) develop normally, with free-swimming tadpoles that eat food. [5] The tadpoles of the corrugated frog (L. laticeps) are free-swimming but endotrophic, meaning they do not eat but live on stored yolk until metamorphosis into frogs. [5]
The tadpoles' heads are pointed with lateral eyes, and they appear dorsolaterally flattened when viewed from above. Their bodies are dark in color (almost jet black), and are flecked with blue. Their bellies are marked with lateral whitish blotches, and the intestinal coil is not transparent through the skin. [ 3 ]
The tadpoles at first look similar to those of the common frog (Rana temporaria) but they are a darker colour, being blackish above and dark grey below. They can be distinguished from the tadpoles of other species by the fact that the mouth is the same width as the space between the eyes, and this is twice as large as the distance between the ...
As tadpoles, the squirrel tree frog is preyed upon by dragonfly nymphs, giant water bugs, predatory fish and newts. [2] [3] Once the tadpoles metamorphose, the predators of the frogs change to small mammals, other frogs, snakes, birds. [2] To reduce the danger of being eaten as tadpoles, they use dense vegetation as cover. [4]