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The Goliath birdeater (Theraphosa blondi) belongs to the tarantula family Theraphosidae.Found in northern South America, it is the largest spider in the world by mass (175 g (6.2 oz)) and body length (up to 13 cm (5.1 in)), and second to the giant huntsman spider by leg span. [1]
Theraphosa leblondi toxin (TLTx) is a toxin occurring in three different forms (subtypes) that are purified and sequenced from the venom of the giant tarantula Theraphosa blondi. This toxin selectively inhibits Kv4.2 voltage-gated potassium channels by acting as a gating modifier.
This page lists all described genera and species of the spider family Theraphosidae. ... Goliath birdeater (Theraphosa blondi) Theraphosa Thorell, 1870. Theraphosa ...
Theraphosa stirmi. In Theraphosa stirmi the carapace can reach a length of 40 mm (1.6 in) and a width of 37 mm (1.5 in). The longest leg (the fourth) in a male had a total length of 110 mm (4.3 in).
Theraphosa is a genus of South American tarantulas that was first described by Charles Athanase Walckenaer in 1805. The Theraphosa spiders are some of the largest known to science. As of May 2020 [update] it contains three species, found in Guyana , Brazil , Venezuela , and Colombia . [ 1 ]
The spider measured 7.9 centimeters (3.1 inches) from foot to foot, surpassing the park’s previous record-holder from 2018, the male funnel-web named “Colossus".
Ironically, the term "bird-eater" is more typically applied to the common names of large terrestrial species of tarantulas, such as the Goliath birdeater (Theraphosa blondi), the burgundy Goliath bird eater (Theraphosa stirmi), and the Brazilian salmon pink bird-eating tarantula (Lasiodora parahybana).
The orb-weaving spider, Araneus ventricosus, has found a way to hack the firefly’s bioluminescent signals to lure more of the glowing insects, according to new research.