NATURE

Look closely at a sunflower, and you'll see the distinct spiral in its center.

6 Fascinating Places to See the Fibonacci Sequence

Fibonacci developed his theory based on rabbit population growth, but you'll find the golden ratio in everything from flowers to outer space.

11 Illuminating Facts About Fireflies

No summer evening is complete without watching fireflies. Here are some fun facts about lightning bugs—which are technically beetles, not bugs.

The Reason You Sometimes See Chunks of Trees on Power Lines

Unlike the brightly colored balls on power lines, those random "tree chunks" don't serve a practical purpose.

Hurricane Florence makes landfall near Wrightsville Beach, North Carolina, on September 14, 2018.

12 Powerful Facts About Hurricanes

June has arrived, which means that hurricane season is here (the season officially runs from June 1 through November 30). When it comes to these massive systems, there's more than meets the eye.

10 Amazing Places to See Fireflies

Seeing a bunch of lightning bugs illuminate a dark sky is a spellbinding experience.

Dolphin urine is a sign of true friendship.

Dolphins Taste Each Other's Pee to Identify Friends

Dolphins don't just use vocalization to find pals: They also take urine samples.

Why You See Fewer Fireflies in the Summer Than You Used To

It's not in your head—there really are fewer fireflies than there used to be. Luckily there are steps you can take to help the insects.