By: Kelly A. Mello
Whales are extraordinary creatures which are said to be evolved from land beasts 50 million years ago. Even today some whales still have a tiny leg or two attached to their enormous bodies, a reminder of what they once were. Some people, however, reject...
By: Anne StClair
In answering the question of why algae, fungi and microbes are not plant life, it is first necessary to understand what a plant is. The online dictionary www.dictionary.com defines a plant as: "any member of the kingdom Plantae, comprising multicellular organisms that typically...
By: Elizabeth Hedger
Photosynthesis is the process by which plants convert carbon dioxide, water, and sunlight into sugar and oxygen. The formula for photosynthesis isCarbon dioxide + water + light energy -> carbohydrate (glucose) + oxygen + waterWater appears on both sides of the equation because it is...
By: Mona Gallagher
When I was a young girl, my mother and I used to go to a wooded area and dig sassafras roots. She knew exactly where to find them. We dug them in the early spring or late fall because that's when the sap is strongest...
By: Martha Leonard
The scene took my breath away. For three years photographers from the Discovery Channel's "Planet Earth" had stalked the elusive, reclusive, endangered snow leopard to film it in its natural habitat in the high mountains of Central Asia. At last their persistence paid off...
By: Ian Loft
More than 80 living species of mammals are classified as whales, or cetaceans from ketos, the Greek name for sea monster. To early mariners these magnificent gigantic creatures were considered no less than monsters from the deep, and many stories attributed to adventures and encounters...
By: Martha Leonard
Approximately 100 years old, the study of ethnobotony is a relative newcomer on the recognized academic scene. Its roots are old, however. This science of the relationship between plants and people actually started in ancient Greece when the physicians of the time began to...
By: Elizabeth Hedger
Pseudogenes, denoted by the Greek letter psi, are genes that were once functional, but that, due to mutations, have lost that function. Pseudogenes may be processed or non-processed. The former contain only exons, while the latter are copies of entire genes. Pseudogenes can arise from...
By: Ian
There are two reasons for camouflage. The first is to avoid being seen by a predator that would eat you. The second is to avoid being seen by an animal you want to eat.The animal that avoids detection by predators is likely to live...
By: Christine Anderson
A modern whale is warm-blooded, breathes air with lungs (through a blow hole on the top of the head), has a four-chambered heart, and feeds its young milk produced by mammary glands. Whales have ears that have been adapted to hearing sounds under-water, have...

 

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