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Urticating hairs or urticating bristles are one of the primary defense mechanisms used by numerous plants, almost all New World tarantulas, and various lepidopteran caterpillars. Urtica is Latin for "nettle" (stinging nettles are in the genus Urtica ), and bristles that urticate are characteristic of this type of plant, and many other plants in ...
Tarantulas often hold this position for longer than the duration of the original threat. Their next step, without biting, may be to slap down on the intruder with their raised front legs. If that response fails to deter the attacker, the tarantulas of the Americas may next turn away and flick urticating hairs toward the pursuing predator. The ...
It includes nearly all the North American tarantula species north of Mexico and a considerable percentage of the tarantula species that range into Central America. Most are fairly large tarantulas with leg spans of 6 in (16 cm) or more. Like most New World tarantulas, all species of Aphonopelma have urticating hairs. Despite their fearsome ...
Although it has hairy legs, this tarantula is an Old World species and does not have urticating hairs on its abdomen. (Urticating hairs are hairs found in most new world species (those from North and South America) that can be shed in defence, they are barbed and may cause severe itching.) It also has a leg span which may reach 8 inches (20 cm).
It is an Old World tarantula, so has no urticating hairs; its only defenses are biting and fleeing. This tarantula is known to have more potent venom than many tarantula species [ citation needed ] , but Cyriopagopus albostriatus venom was shown in a study to have the ability to regulate activity in voltage-gated sodium channels, which are ...
Similar to many tarantula species, A. Anax is non-aggressive and avoids confrontations with humans and larger animals. This docile temperament makes it very desirable in the pet trade, along with A. hentzi. If provoked, however, the tarantula will use its hind legs to kick off some of its urticating hairs towards the potential threat.
Aphonopelma chalcodes, commonly known as the western desert tarantula, desert blonde tarantula, Arizona blonde tarantula or Mexican blonde tarantula, is a species of spider belonging to the family Theraphosidae. It has a limited distribution in the deserts of Arizona and adjacent parts of Mexico but can be very common within this range.
They lack urticating hairs and are arboreal, often found in tree cavities. Many species have "dimples" on the abdomen, but this feature is not universal. Although their behavior is defensive, they lack both urticating hairs and the ability to stridulate, giving them a very mild venom. Their egg sacs can contain up to 200 spiderlings.