YKS 2022 · Soru 77

(I) It might not be a comforting thought for most people that spiders can hear you when you arrive home. (II) Most spiders are perfectly harmless, but they still manage to frighten people. (III) Recently, a type of jumping spider, Phidippus audax, has been studied and the discovery made about its sense of hearing is surprising. (IV) It had been thought to rely almost completely on sight and the vibrations it feels through objects. (V) But microelectrodes implanted in the spiders’ brains showed that their neurons responded to sounds such as chairs scraping and people clapping even when the noises were made between 3 and 5 metres away.