Now is the time to start planning for spring and summer vacations. These eco-travel links will help you travel a little lighter on the earth this year.

Somewhere between Singapore's commercial center and the coast lies a thrilling 120-foot tall walkway through the treetops. It's a treaty between man and nature.

Worldwide we unite as one to welcome the new year with fireworks, so here are 27 fabulous New Year's Eve firework celebrations from around the globe.

Relatively unchanged for millions of years, these very "living fossils" have each managed to find a successful ecological niche and have stuck with it.

The Hubble pierces the heart of outer space darkness, delighting us as our super eye in the sky. Here are 23 famous Hubble discoveries and NASA heavy hitters.

For people uninterested in fighting for the hottest toy or gadget, considering dogs, cats or other animals as holiday gifts may be a cool approach this Christmas.

These 10 invasive species are infamous for the environmental destruction they have caused, even when introduced with the best of intentions.

Deforestation, global warming and other climate changes could have serious effects on dolphins, amphibians, turtles, penguins and many other animals.

Rock climbing can be a very dangerous, extreme sport. Elite climbers are tempted by the adventure and challenge from the rocky, ever-present edge of death.

When we think of slugs, most of us picture the small land variety. But in the ocean waters lives a whole other world of colorful, fascinating sea slugs.

From using maggots to heal wounds to learning how dogs may predict diabetic attacks, the value of safe animal research is seen in recent medical breakthroughs.

From artificial turtle flippers to replacement dolphin tails, animal prosthetics aim to save injured animals and help them regain as much functionality.

Whether you worked hard today or can't seem to find work, let's take a break from the stress. Get ready for your journey to see 32 stunning and spectacular sea arches.

Life's a beach, but not just any beach will do. These 10 amazing beaches showcase the most beautiful sandy shores ever to rock your world!

From the love songs of the Mexican free-tailed bat to the dangerous, seductive dance of redback spiders, the language of love is loud and clear in the animal world.