The biological basis of gene therapy. Gene therapy has grown out of the science of genetics or how heredity works. Scientists know that life begins in a cell, the basic building block of all multicellular organisms. Humans, for instance, are made up of trillions of cells, each performing a specific function.
Satao (elephant) Satao (c. 1968 â 30 May 2014) was one of Kenya's largest African elephants. He was known as a tusker because his tusks were so long that they almost touched the ground. The Tsavo Trust announced that Satao was killed by poachers using a poisoned arrow on 30 May 2014.
Male elephants are known as Bulls. A female elephant is called a cow and a male elephant is called a bull. The longest living elephant on record lived for 70 years, but the average life expectancy is 40 to 65 years.