Poison frog ….šŸøšŸ¤«

Poison frog, (family Dendrobatidae), also calledĀ poison dart frog,Ā dart-poison frog, orĀ poison arrow frog, any of approximately 180 species of New WorldĀ frogsĀ characterized by the ability to produce extremely poisonousĀ skinĀ secretions. Poison frogs inhabit the forests of the New World tropics fromĀ NicaraguaĀ toĀ PeruĀ andĀ Brazil, and a few species are used by South American tribes to coat the tips of darts and arrows. Poison frogs, or dendrobatids, are small and range from 12 to 19 mm (0.5 to 0.75 inch) from snout to vent in the minute poison frogs (Minyobates) to about 65 mm (2.6 inches) in the skunkĀ frogĀ (Aromobates nocturnus).

Kokoa frog or south American poison arrow frog ( dendrobates auratus )

All frogs (orderĀ Anura) produce poisonous skin secretions; however, humans do not notice the toxicity or suffer skin irritation when handling most species. Nonetheless, handling one of the brightly coloured dendrobatids, such asĀ DendrobatesĀ andĀ Phyllobates, requires caution because theirĀ alkaloidĀ skin secretions are potentially lethal if absorbed through humanĀ mucous membranesĀ or passed into the body through a cut on the skin. In fact, the skin secretion of the true poison dart frog, or golden poison frog (Phyllobates terribilis), is so toxic that the tip of a dart rubbed across its back picks up sufficient poison to kill a largeĀ birdĀ or aĀ monkey. The origin and production of the toxic skin secretions remains uncertain, but at least in some dendrobatids it appears to be derived from theirĀ consumptionĀ of beetles, their primary prey. When kept in captivity and fed a diet devoid of beetles, the skin secretions of poison frogs lack the highly toxic alkaloids.

World’s most beautiful frog šŸø

All frogs (orderĀ Anura) produce poisonous skin secretions; however, humans do not notice the toxicity or suffer skin irritation when handling most species. Nonetheless, handling one of the brightly coloured dendrobatids, such asĀ DendrobatesĀ andĀ Phyllobates, requires caution because theirĀ alkaloidĀ skin secretions are potentially lethal if absorbed through humanĀ mucous membranesĀ or passed into the body through a cut on the skin. In fact, the skin secretion of the true poison dart frog, or golden poison frog (Phyllobates terribilis), is so toxic that the tip of a dart rubbed across its back picks up sufficient poison to kill a largeĀ birdĀ or aĀ monkey. The origin and production of the toxic skin secretions remains uncertain, but at least in some dendrobatids it appears to be derived from theirĀ consumptionĀ of beetles, their primary prey. When kept in captivity and fed a diet devoid of beetles, the skin secretions of poison frogs lack the highly toxic alkaloids.

World most poisonous frog sells for Rs . 1.5 lakh in market šŸ˜®

Parental care of the young, which is often performed by the male, occurs in all poison frog species. The male attracts a female to his residence beneath a leaf or log, and she lays theĀ eggsĀ and often departs. The male remains to guard the clutch; however, in some species the female remains. When theĀ tadpolesĀ hatch, the parent allows the tadpoles to swim or crawl up onto his or her back. They are subsequently carried to a nearby body of water (such as a stream, a pond, or a tree hole). There, the tadpoles slide off the back of the parent and into the water to complete their development.

strawberry poison dart frog (Dendrobates pumilio) perching on a leaf in the Amazon rainforest.

Superficially, the mantelline frogs ofĀ MadagascarĀ (familyĀ Mantellidae) appear nearly identical to the dendrobatids; however, they are not closely related. The similarities between the two groups are attributed toĀ convergent evolution. Also, both are comparable in terms of physical size, as mantellines range from 15 to 120 mm (0.6 inch to nearly 5 inches) from snout to vent, although most species are less than 60 mm (about 2.5 inches) long. While the skin secretions of the mantellines have not been thoroughly studied, the secretions ofĀ MantellaĀ are toxic and capable of killingĀ vertebrateĀ predators.Mantellines include more than 100 species in three genera of terrestrial to arboreal (tree-dwelling) forms that live in semiaridĀ scrublandĀ toĀ rainforestĀ habitats. Some species lay eggs on leaves that overhang bodies of water, and hatching larvae then drop into the water. Other species lay terrestrial eggs that develop either directly into froglets or into a nonaquatic, nonfeedingĀ tadpoleĀ stage. In addition, parental care occurs in some mantelline species with terrestrial eggs.

WRITTEN BY :- RIYA SINGH

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