Scientists have found structures that resemble an emu's red blood cells, and others that look like collagen, inside 75 million-year-old dinosaur bones.

It's no Jurassic Park, but a flea stuck in amber for 20 million years may still shed light on the Black Death.

Researchers have launched a mission to find the Javan fishing cat, the rarest cat in the world.

Some of these massive beasts are familiar in form but enormous in size, while others are strange hybrids of modern-day animals.

Even core areas of pika habitat 'are vulnerable to climate change within a timeframe of decades,' researchers say.

The U.S. Fish and Wildlife Service declared the eastern cougar extinct after it not being seen for over 80 years.

If humans are still around millions or billions of years from now, they'll have to deal with supervolcanoes, asteroids and worse.

Humans have driven almost 600 plant species extinct since 1750s and that number is likely much higher.

Sign up for MNN's weekly newsletter for a chance to win a cruise on Oasis of the Seas.

MNN and Eukanuba are looking for the Green Dog of the Year. Enter your dog for a chance to win a year's supply of Eukanuba Naturally Wild Formula dog food.

MNN and Eukanuba are looking for the Green Dog of the Year. Enter your dog for a chance to win a year's supply of Eukanuba Naturally Wild Formula dog food.

NN and Eukanuba are looking for the Green Dog of the Year. Enter your dog for a chance to win a year's supply of Eukanuba Naturally Wild Formula d

NN and Eukanuba are looking for the Green Dog of the Year. Enter your dog for a chance to win a year's supply of Eukanuba Naturally Wild Formula do

NN and Eukanuba are looking for the Green Dog of the Year. Enter your dog for a chance to win a year's supply of Eukanuba Naturally Wild Formula dog

NN and Eukanuba are looking for the Green Dog of the Year. Enter your dog for a chance to win a year's supply of Eukanuba Naturally Wild Formula dog f

NN and Eukanuba are looking for the Green Dog of the Year. Enter your dog for a chance to win a year's supply of Eukanuba Naturally Wild Formula dog fo

NN and Eukanuba are looking for the Green Dog of the Year. Enter your dog for a chance to win a year's supply of Eukanuba Naturally Wild Formula dog foo

What does a green dog do? Check out the contestants. Enter your dog now!

NN and Eukanuba are looking for the Green Dog of the Year. Enter your dog for a chance to win a year's supply of Eukanuba Naturally Wild Formula dog food. W

NN and Eukanuba are looking for the Green Dog of the Year. Enter your dog for a chance to win a year's supply of Eukanuba Naturally Wild Formula dog food. We

NN and Eukanuba are looking for the Green Dog of the Year. Enter your dog for a chance to win a year's supply of Eukanuba Naturally Wild Formula dog food. We'

What does a green dog do? Check out the contestants. Enter your dog now!

NN and Eukanuba are looking for the Green Dog of the Year. Enter your dog for a chance to win a year's supply of Eukanuba Naturally Wild Formula dog food. We'r

MNN and Eukanuba are looking for the Green Dog of the Year. Enter your dog for a chance to win a year's supply of Eukanuba Naturally Wild Formula dog food. We'r

What does a green dog do? Check out the contestants. Enter your dog now!

What does a green dog do? Check out the contestants. Enter your dog now!

Check out the top entries from MNN's Green Dog of the Year Contest!

3 MNN Twitter fans will win a DVD of 'The End of the Line,' a documentary about overfishing that is narrated by Ted Danson.

Mother Nature Network is giving away some of our favorite green books to keep you busy by your favorite low-carbon fireplace this winter.

One of our lucky Facebook followers will have an organic backyard food garden created at their home by professionals.

Become a Pinterest fan, repin from our back-to-school board and you could win an iPad and green books.

Become a Facebook fan and win these 7 environmentally-themed titles.

You don't have to be Irish to try this whiskey-filled classic hot drink.

Open up the liquor cabinet, pull out your shaker, and celebrate your hard work with a cocktail.

Low-calorie cocktails abound, even if they're not labeled as such. The key is knowing the amount of alcohol and sugar in what you're drinking.

Session cocktails and plant-based barbecue are the biggest food trends this summer.

Try these non-alcoholic cocktails, zero-proof cocktails. Your non-imbibing friends will thank you for giving them great choices.

How did the Shirley Temple, the grandmother of all non-alcoholic cocktails, come to be?

Stealing bar glasses to keep as a souvenir goes way back and plays a key role in the mint julep, Kentucky Derby relationship.

A medium-size solar flare erupted from the sun this weekend, hurling a cloud of plasma and charged particles toward Earth on a cosmic path that is expected to d

By analyzing ear wax from a deceased blue whale, scientists gained clues to years of chemical exposure.

Mercury, the smallest planet in our solar system, may hold clues to understanding how the Earth's moon was born.

An analysis of dozens of pyroclastic ash deposits suggests that Mercury had an long history explosive volcanism.

Mercury, named for the Roman messenger of the gods, is the smallest planet in our solar system and the closest to the sun. Check out these amazing images

Whether it's a white lie or a whopper, fibs are part of our daily lives. We like to think we're honest but, well, we're not. Test your falsehood expertise.

Dogs have incredible senses and are like superheroes on four legs. Take this quiz to test your canine know-how.

Sure herbs and spices taste wonderful, but do you know what benefits they provide to your body?

Hearth and Home Technologies says 100 million homes can be heated sustainably with wood pellets.

The vision of an energy-efficient super grid that allows powers companies to communicate real-time may be possible through Google-Spectrum Bridge partnership.

The 57,000-acre San Andres Refuge, which works to restore desert bighorn sheep, launched its quest for energy independence in 2005 and has implemented several s