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?

How different animals see color and animal vision including rod diversity, color blindness and perspective in dogs, cats, horses, snakes, insects and more.

10 examples of amazing architecture, art and even fuel created from discarded materials like a decontamination chamber, used coffee filters and dirty diapers.

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

Weird green tech and bad-ass hybrids. Shmeat...and the naked celebs promoting it. The coldest record on year and the Maldives' panic attack. It's been a wild year in green

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.

Famous people throughout history loved nature and were environmentalists. Learn about them, from Ansel Adams to Thoreau to Aristotle to Edison to Einstein.

Here's a look at the historical and current importance of water and its vital role in our development and sustenance.

Let's take a brief journey through some of the more interesting aspects of our moon.

Some trees are just breathtakingly spectacular, whether by their size, age or shape or other unique characteristics - from the oldest to the largest and more.

Here's a collection of some of the weirdest real-life cases of mass hysteria. From witch trials to the Halifax Slasher, they are enough to creep anyone out.

Strange and bizarre endangered animal species: mexican walking fish, coconut crab, giant salamander, bird eating spider, komodo, glass frog, kagu and more.

Here's a look at the major ways in which deforestation is impacting our world and our lives today.