life's little mysteries
Hydrogen is not a metal on Earth, but scientists keep trying to create metallic hydrogen under high pressure to unlock a new superconductor.
Diamonds are naturally hard, but is there anything from Earth, space or even a lab that's harder?
The number varies from a dozen to almost 100 — and most of these don't even appear on official maps.
Life's Little Mysteries Poop eating is a natural behavior in dogs; although it may disgust humans, it usually poses no threat to your canine's health.
Life's Little Mysteries To figure out this mind-bogglingly high number, we need to know how many species have ever lived, dig deep into the fossil record and do a lot of math.
Youngsters often hunker down to hide from predators, and spots can provide excellent camouflage.
One difficulty in scientifically evaluating is ghost are real is the surprisingly wide variety of phenomena attributed to ghosts.
Gastroenterologists describe the factors that go into passing gas and which foods make farts smell.
There are 17 rare earth elements on the periodic table, but a better name for them would be the "troublesome earths." Here's why.
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