One of the planet’s most notorious invasive species is a comb jelly, Mnemiopsis leidyi. A native of the east coast of North and South America, the comb jelly is capable of eating ten times its ...

From fireflies to comb jellies, here is a list of eight animals that naturally glow in the dark. Fireflies use flashing light to attract mates, but begin emitting light even as larvae. The glowworm ...