Human testicles are much smaller, in proportion, to some of our primate cousins. Evolution can tell us why. But the size of ...

A carnivorous caterpillar discovered on the Hawaiian island of Oahu adorns its silken protective case with the body parts of insect prey. This macabre coat helps them hide from spiders, whose webs ...

This Hawaiian caterpillar raids spiderwebs camouflaged in insect prey’s body parts, and it's not above cannibalism in a pinch. Credit: Rubinoff lab/University of Hawaii, Manoa. We think of moths ...

Bone collector cases are carefully constructed from silk and exoskeleton parts. Image: Rubinoff lab, Entomology Section, University of Hawaii, Manoa Get the Popular Science daily newsletter💡 ...

This camouflaged critter wears severed insect body parts like a coat. A newly described species from Hawaiʻi hides itself with carcasses to avoid getting eaten by spiders.