Light stimulates sexual desire in spiders

According to a study published in Science, ultraviolet rays of light stimulate sexual desire in some jumping spiders (Cosmophasis umbratica).

Researchers at the University of Singapore claim that the impact of light on sexual behavior in some invertebrate marine or parrot species has been known.

But in the jumping Cosmophasis umbratica, the ultraviolet rays that the invisible person shines different fluorescent glowing parts in the body of the male and spider spiders, awakening the desire to mate in them.

'Male spiders immediately try to seduce the spiders by applying postures such as arching their belly, stretching their legs, flaring and fluttering' explained the author Li Daigin. And the spiders react by bending their legs, throwing their belly out or flying away for a while.

But once the lights are off, these spiders completely ignore each other.

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