How trees can prevent floods
By: Safa
Trees are one of the most important organisms to ever exist on planet Earth. Food for all living organisms originates from trees and other members in the plant kingdom. Every single organism depends directly or indirectly on trees for their survival. Trees not only provide...
By: J. Lang Wood
The stinging nettle plant, botanical name urtica dioica, is a native of Europe, Asia, Africa and North America. It is found widely throughout the United States. Also called the common nettle, this plant can cause intense pain and blistering through its stinging hairs, called trichomes...
How dolphins use sonar to locate prey
By: Susan Ladue
Sonar is a method for detecting and locating things submerged in water by sending out sound waves, then listening to the echoes that result when the sound waves bounce off an object. The process is also called echolocation. Dolphins don’t see very well and...
What is mitochondrial DNA (mtDNA)?
By: Jayson Precht
Mitochondria produce energy for your cells. They are believed to have originated from a symbiotic relationship between bacteria and cells a very long time ago. Eventually the bacteria became part of the cell, specifically the mitochondria. This explains why mitochondria have their own set...
The life cycle of the American eel, Anguilla rostrata
By: Effie Moore Salem
The American eel is an ugly and slimy little creature that resembles a flattened snake in some respects but it has a most interesting life cycle. And not only that, it has secrets about its overall life that scientists have yet to unravel. And if...
By: Anita Chauhan
Introduction Urtica dioica is native across the countryside in the continents of Europe, Asia, Africa and North America. Aptly called the “Stinging nettle”, contact with this plant can cause stinging and rashes. The many hollow trichomes, or stinging hairs on its leaves and stems...
By: Courtney Waterman
In the darkest depths of the ocean or in murky water, dolphins are unable to see their prey. By creating click sounds they are able to accurately locate objects. They use what is called sonar, or echolocation. Echolocation is quite simple. A dolphin sends out...
The life cycle of the American eel, Anguilla rostrata
By: Sharon Rowe
The life cycle of the American Eel (Anguilla Rostrata) has a very complex life cycle and its body completely changes at different times of the eel’s life. These changes are called metamorphoses. The eggs of the American Eel are laid and fertilised in the...
How dolphins use sonar to locate prey
By: Effie Moore Salem
Dolphins use echolocation, or sound waves, to communicate with others members of their group, to spy on their enemies, to tease and intrigue mates and to do lots of other fascinating things to captivate visitors. Dolphins are smart and they have a large vocabulary of...
By: Mari Mckee
The never ending controversies surrounding Darwin’s Theory of Evolution comes to mind when learning the life cycle of the American Eel. The theory is that over hundreds of millions of years, humans evolved from fish that crawled out of the ocean on four limbs...

 

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