Browse Reference Articles
61 to 70 of 511 articles
-
Timeline of evolution
This timeline of the evolution of life outlines the major events in the development of life on the planet Earth. Dates given are estimates based on scientific evidence. In biology, evolution is the ... > more -
Service dog
A service dog is a type of assistance dog that is specially trained to help people who have disabilities other than visual or hearing impairment. Examples of these include Psychiatric service dogs, ... > more -
Biomass (ecology)
In ecology, biomass refers to the cumulation of living matter. That is, it is the total living biological material in a given area or of a biological community or ... > more -
Dog anatomy
The anatomy of dogs varies tremendously from breed to breed, more than in any other animal species, wild or domesticated. And yet there are basic physical characteristics that are identical among all ... > more -
Microorganism
A microorganism (also spelled as microrganism) or microbe is an organism that is microscopic (too small to be seen by the human eye). The study of microorganisms is called microbiology. ... > more -
Capuchin monkey
The capuchins are the group of New World monkeys classified as genus Cebus. Like most New World monkeys, capuchins are diurnal and arboreal. With the exception of a midday nap, they spend their ... > more -
Therapy dog
Therapy Dog refers to a dog trained to provide affection and comfort to people in hospitals, retirement homes, nursing homes, mental institutions, schools, and stressful situations such as disaster ... > more -
Mixed-breed dog
A mixed-breed dog, also called a mutt (shortened from muttonhead), crossbreed, mongrel, tyke, cur, or random-bred dog, is a dog that is a mixture of two or more breeds, or a descendant of feral or ... > more
Search ScienceDaily
Number of stories in archives: 138,555

