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The American bullfrog (Lithobates catesbeianus), often simply known as the bullfrog in Canada and the United States, is a large true frog native to eastern North America. It typically inhabits large permanent water bodies such as swamps , ponds , and lakes .
The African bullfrog is a voracious carnivore, eating insects and other invertebrates, small rodents, reptiles, small birds, fish, and other amphibians that can fit in their mouths. [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 ...
They are immune to the poison and they secrete it through their skin as a defense mechanism against predators. This poison is so efficient, the native people of the South American Amazon rainforest use the frogs' toxins on their weapons to kill their prey, giving the frogs their nickname the "poison dart frog".
Lithobates, commonly known as the bullfrogs, is a genus of true frogs, of the family Ranidae. [1] The name is derived from litho- (stone) and the Greek bates ( βάτης , one that treads), meaning one that treads on rock, or rock climber.
These are frog eggs. This is how we're used to frogs having babies. They lay eggs, those eggs hatch into tadpoles ... and you learned the rest in science class.
The bullfrogs frequently kill and eat residents' fish and chicks, both of which are important to the islanders. While Indian law prohibits their killing, it is still done, both out of desire to rid the islands of the species and for food (H. tigerinus is a very cheap source of protein). Despite these efforts, the frogs' spread continues.
Duke Health is a trial site for a drug that could be the first universal antivenom to treat any kind of snake bite — including North Carolina’s ubiquitous copperhead.
Insects, along with having passive immunity, also show evidence of acquired immunity. [ 1 ] Social insects additionally have a repertoire of behavioural and chemical "border-defences" and in the case of the ant, groom venom or metapleural gland secretions over their cuticle.