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Although these frogs can swallow animals almost half their size, they sometimes attempt to eat things larger than they are. Their teeth, as well as bony projections in the front of the jaw, can make it difficult for them to release prey after taking it in their mouth, in some cases leading to death by choking.
Male northern cricket frogs were collected at the peak of the breeding season and injected with sheep blood cells to elicit an immune response. Researchers found that spermatic cyst diameter, germinal epithelium depth, and gonadosomatic index were smaller in the injected males compared to males injected with saline (control) as well as their ...
Adult frogs live in fresh water and on dry land; some species are adapted for living underground or in trees. Frogs typically lay their eggs in the water. The eggs hatch into aquatic larvae called tadpoles that have tails and internal gills. They have highly specialised rasping mouth parts suitable for herbivorous, omnivorous or planktivorous ...
Pig frogs are important members of their ecosystem, helping to control the populations of the insects and other small animals that they eat. They play a vital role in maintaining the balance of their wetland habitats. The percentage of Pig frogs' prey items varies throughout the year, most likely due to the availability of resources. [4]
Batrachology is the branch of zoology concerned with the study of amphibians including frogs, salamanders, and caecilians. It is a sub-discipline of herpetology, [1] which also includes non-avian reptiles (snakes, lizards, turtles, crocodilians, and the tuatara). Batrachologists may study the evolution, ecology, ethology, or anatomy of amphibians.
By inflating its body and bending its head down, the bullfrog can appear larger than its actual size. [24] It also secretes a noxious white substance through its skin that is distasteful, though non-toxic, to predators. [42] [43] The secretion contains a trypsin inhibitor and can induce hemolysis (rupturing of red blood cells). [15] [42]
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They are not found in the sea with the exception of one or two frogs that live in brackish water in mangrove swamps; [34] the Anderson's salamander meanwhile occurs in brackish or salt water lakes. [35] On land, amphibians are restricted to moist habitats because of the need to keep their skin damp. [31]