Treehugger / Hilary Allison Studying leaf shape and the arrangement of leaves on a stem is the most common way of identifying a tree in the field during the growing season. The novice taxonomist ...

The killing of wild animals for food is a different story. Though it was, at one time, a way of life and necessary for survival, today, hunting is a controversial topic because it is frequently ...

Chao Yen / Flickr / CC BY-ND 2.0 Until 2013, Methuselah, an ancient bristlecone pine was the oldest known non-clonal organism on Earth. Methuselah was 4,789 years old when examined in 1957, with ...

NPR did a piece on the types of pantry staples that best help those relying on food banks to build healthy meals. Food banks report that food donations should focus “on whole, unprocessed or ...

From New York's Eternal Flame Falls to Ethiopia's Erta Ale, these naturally occurring eternal flames have been burning for decades or centuries.

5. Baking Soda Used with vinegar and water or alone with water, baking soda is effective at removing mold naturally. Dissolve baking soda into water or a water-and-vinegar solution, and spray onto ...

Codes, puzzles and cryptic public art tease us with their intrigue. Here's our list of 10 of the world's most cryptic unsolved mysteries and codes.

Noise pollution is noise that has surpassed ambient noise levels and has a harmful impact on humans and animals. This type of pollution is generated by humans and is a form of environmental ...

Distribution of global forest area. FAO The boreal represents nearly 30% of the world's forest cover. Canada contains 9% of the world's forests. 77% of Canadian forests are in the boreal zone. The ...

12 Plants That Repel Unwanted Insects (Including Mosquitoes) Bid goodbye to mosquitoes in your garden. From basil to marigolds to nasturtiums, these plants are nature's bug repellents.

Chipmunks are as cute as can be, with their enchanting eyes, bushy tails, striped backs, and chubby cheeks. You may have seen these tiny rodents darting around your yard or nearby woodlands. Or ...

Food Web Definition The concept of a food web, previously known as a food cycle, is typically credited to Charles Elton, who first introduced it in his book Animal Ecology, published in 1927. He ...