5 fun facts about fireflies (aka your favorite summer bug):
Fireflies mate for a full evening and spend the whole night together. Awwww.
The lights you see from fireflies are courtship signals that males are sending to females.
But firefly romance is risky business. “Femme fatale” fireflies seduce males, and then suck their blood to get chemicals for their own survival.
Around 150 million years ago, the very first fireflies flew during the daytime and didn’t light up. Today, there are still some firefly species where only the females light up.
The chemical that makes fireflies light up first evolved as a warning sign to ward off predators — and it tastes terrible. Don’t eat the fireflies, folks.
WATCH: The loves and lies of fireflies »