Transformation of the Mirror Spider (Thwaitesia sp.) - DSC_9752 by nickybay, via Flickr ~ Check out Nicky Bay's amazing macro photography!

Transformation of the Mirror Spider (Thwaitesia sp.) - DSC_9752 by nickybay, via Flickr ~ Check out Nicky Bay's amazing macro photography!

Photographer Nicky Bay Documents Mirror Spiders Adjusting their Silver Plates to Appear More Reflective | Colossal

Photographer Nicky Bay Documents Mirror Spiders Adjusting their Silver Plates to Appear More Reflective | Colossal

Meet the Mirror Spider, a spider with shiny guanine crystal patches on its back that give it the appearance of the broken glass mosaic you made in arts & crafts class. The shiny parts appear small when the spider is on the move but grow to cover the entire abdomen when at rest... #DiscoSpider

Meet the Mirror Spider, a spider with shiny guanine crystal patches on its back that give it the appearance of the broken glass mosaic you made in arts & crafts class. The shiny parts appear small when the spider is on the move but grow to cover the entire abdomen when at rest... #DiscoSpider

These spiders, called mirror or sequined spiders, are all members of several different species of the thwaitesia genus, which features spiders with reflective silvery patches on their abdomen.  The scales look like solid pieces of mirror glued to the spider’s back, but they can actually change size depending on how threatened the spider feels. The reflective scales are composed of reflective guanine, which these and other spiders use to give themselves color.

These spiders, called mirror or sequined spiders, are all members of several different species of the thwaitesia genus, which features spiders with reflective silvery patches on their abdomen. The scales look like solid pieces of mirror glued to the spider’s back, but they can actually change size depending on how threatened the spider feels. The reflective scales are composed of reflective guanine, which these and other spiders use to give themselves color.

Photographer Nicky Bay Documents Mirror Spiders Adjusting their Silver Plates to Appear More Reflective | Colossal

Photographer Nicky Bay Documents Mirror Spiders Adjusting their Silver Plates to Appear More Reflective | Colossal

Photographer Nicky Bay Documents Mirror Spiders Adjusting their Silver Plates to Appear More Reflective

Photographer Nicky Bay Documents Mirror Spiders Adjusting their Silver Plates to Appear More Reflective

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