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Spider cannibalism is the act of a spider consuming all or part of another individual of the same species as food. It is most commonly seen as an example of female sexual cannibalism where a female spider kills and eats a male before, during, or after copulation. Cases of non-sexual cannibalism or male cannibalism of females both occur but are ...
While demonstrating animal suicide itself in a lab is believed to be possible by some, [11] the ethics of driving an animal to kill itself are debated. [ 10 ] [ 12 ] In the field, it can be difficult to not only find examples of suicide, but to be certain that the death was intentional, not accidental.
A number of spiders can cause spider bites that are medically important. Almost all spiders produce venom but only a few are able to cause significant harm to humans. [1] Two medically important spider genera have a worldwide distribution—Latrodectus and Loxosceles. Others have a limited distribution.
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 ...
Only male Sydney funnel-web spiders have venom that can kill an adult, and 13 deaths have been attributed to the common Sydney funnel-web spider between 1927 and the early 1980s. There have been ...
In contrast to most jumping spiders, mating behavior in Evarcha culicivora is very violent. Cannibalism of both sexes are more common than other spider species. The frequency with which males kill females is higher than that of females killing males. Therefore, to ensure reproductive success, Evarcha culicivora has evolved a mate choice ...
But for those who just can't bring themselves to tolerate the presence of spiders, they have a few options recommended by arachnologists and pest control companies alike:
Spider behavior refers to the range of behaviors and activities performed by spiders. Spiders are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom . They are the largest order of arachnids and rank seventh in total species diversity among all other groups of organisms [ 1 ] which is reflected in their ...