Mockingbirds can be found in the United States, Cuba, Mexico, the Antilles, the Galapagos and the Bahamas. They are the state bird of Texas, Tennessee, Mississippi and Florida. They were popular as caged pets in the 18th and 19th centuries (see Thomas Jeffrson) and are experiencing a revival now. Mockingbirds weigh about 50 grams and […]
The Cheetah is the fastest land animal in the world. These large beautiful wild cats can reach speeds of 45-70 miles per hour. They can sustain the speed for up to 300 yards. While they cannot reach the speed of cheetahs, there are breeds of domestic cats that can run very fast and accomplish great […]
Stem cells are undifferentiated cells that have the ability to become specialized cells such as skin, bones, muscles, etc. The two main sources of stems cells are embryos at the embryonic stage of development (blastocyst) and adult tissue. They can be found in bone marrow, blood vessels, muscles, skin, liver, the brain, nasal mucosa, fatty […]
