![]() When the spiders’ limbs twitched, so did their eyes. While movable eyes have only evolved in a select number of lineages (insects, for example, do not have moving eyes), spiders possess retinal tubes that allow them to alter their gaze. ![]() The team exploited the fact that jumping spiders’ babies have translucent bodies to scan for signs of REM sleep. We saw these regularly occurring bursts of activity that just looked or reminded us a lot about when you watch cats and dogs sleep or dream where you just see these quite uncontrolled twitches,” Rößler told the Harvard Gazette. “We recorded the adults as they hung there. Shamble and Rößler were curious as to what the arachnids were getting up to in this position. ![]() The snoozing spiders suspended themselves on a silk thread through the night. Rößler, who conducted the research while at Harvard University, got the idea for the study when they analyzed the sleep behavior of a species of jumping spider ( Evarcha arcuata). The study’s authors, Paul Shamble and Daniela C. A new study that peered at the translucent bodies of juvenile spiders has found evidence to suggest they may undergo a form of rapid eye movement (REM) sleep, a state closely associated with dreaming in mammals.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |