Crab spider vision improves their prey capture despite low visual system investment

Abstract Crab spiders (Thomisidae) are well-known predators, typically ambushing prey upon flowers and other plants. This style of predation suggests a potential benefit from vision in prey capture by crab spiders despite their comparatively small eyes. However, behavioural evidence on the impact of vision on prey capture success by crab spiders is currently lacking. To address this knowledge gap, we assessed predatory performance in blinded and unblinded crab spiders (Sidymella rubrosignata) co