Sea fireflies adapted their threatening glow to attract mates

Tiny bean-shaped crustaceans called ostracods, known as sea fireflies, release glowing blue mucus to threaten predators, but some males evolved to use this to attract females

Sea fireflies adapted their threatening glow to attract mates
Tiny bean-shaped crustaceans called ostracods, known as sea fireflies, release glowing blue mucus to threaten predators, but some males evolved to use this to attract females