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Bolas: Bolas spiders are unusual orb-weaver spiders that do not spin the webs. Instead, they hunt by using a sticky 'capture blob' of silk on the end of a line, known as a ' bolas '. By swinging the bolas at flying male moths or moth flies nearby, the spider may snag its prey rather like a fisherman snagging a fish on a hook.
Spiders injected with venom components which cause injected humans to report pain (serotonin, histamine, phospholipase A2 and melittin) autotomize the leg, but if the injections contain venom components which do not cause pain to humans, autotomy does not occur.
Pisaurina mira, as one of the most common spiders found in eastern United States, is well integrated in human lives. While the venom of P. mira is lethal to its prey, it is not effective against larger targets and is thus very unlikely to be medically significant for humans.
Brown recluse spiders, which also offer a medically significant bite to humans, are not native to Pennsylvania but can be found in a wide range of the U.S., primarily in southern and Midwestern ...
Spiders have a reputation for giving some humans a fright, but a team of scientists has flipped the script to learn why one increasingly visible species seems to have an edge on handling stress.
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Ant-mimicking spiders also modify their behavior to resemble that of the target species of ant; for example, many adopt a zig-zag pattern of movement, ant-mimicking jumping spiders avoid jumping, and spiders of the genus Synemosyna walk on the outer edges of leaves in the same way as Pseudomyrmex. Ant mimicry in many spiders and other ...
“Spiders are beneficial bugs that help control other pest insects such as flies, adult mosquitoes, ants, etc.” Capture and release can look like using a cup and a piece of paper to capture and ...