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Maple Leaves Mixed Changing Fall Colors

Why Do Leaves Change Colors in the Fall?

Happy young nurse assisting an elderly patient walking outside

Why Do Gray Hairs Have a Different Texture?

Slices of ripe apples on a wooden table

Why Do Sliced Apples Turn Brown?

Back of a head of an older man with gray hair (aging, elderly, mature, grey, seniors).

Why Does Hair Turn Gray?

Many hands with different skin hues. human skin

12 Questions About Skin Answered

Discover

Bristlecone pine (Pinus Longaeva) on the slope of Mount Washington in Great Basin National Park in the Nevada desert.

How Can Some Trees Survive for Thousands of Years?

Shadow of a man holding large knife in his hand inside of some dark, spooky buiding

7 of History's Most Notorious Serial Killers

Illustration for Demystified "How Dangerous is Quicksand"

How Deadly Is Quicksand?

Poker game. Card game. Royal Flush in poker. Hearts suit gambling

Poker Hands Ranked

Gerald R. Ford playing golf during a working vacation on Mackinac Island in Michigan, July 13, 1975. Gerald Ford.

9 U.S. Presidents with the Most Vetoes

The Colosseum, Rome, Italy. Giant amphitheatre built in Rome under the Flavian emperors. (ancient architecture; architectural ruins)

New Seven Wonders of the World

The field takes the turn one after the restart during the 103rd Indianapolis 500 at Indianapolis Motor Speedway on May 26, 2019 in Indianapolis, Indiana. (auto racing, Indy 500)

Why Is the Indy 500 Held on Memorial Day Weekend?

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