Symbiotic and mutualistic, never parasitic, here are seven of the most radical underwater symbiotic relationships from the shallowest to the deepest waters of our world.

Rats are amazing creatures with amazing skills, abilities, intelligence, memory and traits. Learn rat stories, trivia, and unusual facts about these rodents.

This article describes the hottest, wettest, driest, highest, lowest, tallest, coldest and other most extreme locations and places on earth.

The world's deepest and most deadly dive sites include old nuclear missile silos, blue holes, artificial dive pools and caverns over 300 feet deep.

Sure everyone knows that bats, but have you ever wondered what other animals are creatures of the night?

You thought man-made wonders were impressive? Here are seven of the most awe-inspiring animal architects and architectonic structures of the animal kingdom

The following collection has a mix of the longest, deepest, and widest (in area) canyons and gorges from around the world.

Let's take a look at some of the most interesting facts and mysteries surrounding the Earth.

The most remote islands on earth, islands in lakes, the smallest islands, islands in cities and other amazing islands.

Here is a collection of 29 disturbingly creative advertisements from 5 different organizations trying to spread awareness and make a change.

Here's a look at 5 arctic animals that possess the amazing ability to change their color in the winter for camouflage.

Photographers who capture amazing HDR, macro, long range, underwater and nighttime images of landscapes, animals, weather phenomena and more.

Air, wind and sky artists can challenge our preconceptions and broaden our (literal) horizons by problematizing the simplistic duality of Earth and Sky.

The Sun is the largest object in our solar system and is of utmost importance to the existence of life on our planet Earth.

Ridiculously cute and tiny creatures like the pygmy marmoset, bee hummingbird, mouse lemur and a cat that fits in a pint glass.