A group of a particular species that are about to become genetically isolated from the rest of the species, perhaps due a geographical barrier, though at this time can still reproduce with other groups of the species before their gene pools become too distinct.
A group of a particular species that are about to become genetically isolated from the rest of the species, perhaps due a geographical barrier, though at this time can still reproduce with other groups of the species before their gene pools become too distinct...
A still body of water may be disturbed by a variety of factors. One of them is wind. In fact, it is considered as the pr..
Certain species are capable of expressing characteristics indicative of the state of the ecosystem they occupy. They are..
Meet the colorful takahē, an extremely rare flightless bird. Find out more about its unique features and why they matte..
This tutorial recognizes the importance of food as a source of energy that will fuel many biological processes. A good d..
Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..
Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..
