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These amphibians usually sequester toxins from animals and plants on which they feed, commonly from poisonous insects or poisonous plants. Except certain salamandrid salamanders that can extrude sharp venom-tipped ribs, [ 1 ] [ 2 ] and two species of frogs with venom-tipped bone spurs on their skulls, amphibians are not known to actively inject ...
The hooded pitohui.The neurotoxin homobatrachotoxin on the birds' skin and feathers causes numbness and tingling on contact.. The following is a list of poisonous animals, which are animals that passively deliver toxins (called poison) to their victims upon contact such as through inhalation, absorption through the skin, or after being ingested.
The Illinois List of Endangered and Threatened Species is reviewed about every five years by the Illinois Endangered Species Protection Board (ESPB). [1] To date it has evaluated only plants and animals of the US state of Illinois, not fungi, algae, or other forms of life; species that occur in Illinois which are listed as endangered or threatened by the U.S. federal government under the ...
The golden poison frog is the largest species of the poison dart frog family, and can reach a weight of nearly 30 grams with a length of 6 cm as adults. [7] Females are typically larger than males. [4] The adults are brightly colored, while juvenile frogs have mostly black bodies with two golden-yellow stripes along their backs.
The red-backed poison frog is a moderately toxic dendrobatid, and is the second-most poisonous of the frogs in the genus Ranitomeya. Its toxins are used as the frog's natural defense mechanisms, making them inedible to many, if not most, of the predators in its natural area.
The Illinois chorus frog, a wetland amphibian, grows to a maximum length of 1.5 inches (3.8 cm). Its range is restricted to isolated sandy wetlands along the banks of the Mississippi River and a major tributary, the Illinois River. [2]
Pleurodema bibroni is a species of frog in the family Leptodactylidae. Its common name is four-eyed frog, [2] although this name can also refer to the genus Pleurodema in general. [3] The common name refers to two inguinal poison glands that resemble eyes. [4] When threatened, the frog lowers its head and raises its rear.
The Aromobatidae are a family of frogs native to Central and South America. [2] [3] [4] They are sometimes referred to as cryptic forest frogs or cryptic poison frogs. [2]They are the sister taxon of the Dendrobatidae, the poison dart frogs, but are not as toxic as most dendrobatids are.