Q:
Are walking sticks venomous?
A:
Quick Answer
Although walking stick insects do not have a venomous sting or bite, some species can discharge a milky acidic spray from glands at the rear of the thorax. They can spray it accurately at predators at a range of up to two feet.
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The acidic compound can provoke an intense burning sensation and cause temporary blindness if it reaches the eyes. In addition to spraying, walking sticks have several other defenses; they can discharge unpalatable blood from their leg joints as well as regurgitate a foul liquid. The best-known defense of the walking stick is the insect's ability to mimic twigs.
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