Two brunettes and a blonde are driving in the desert when, all of a sudden, their car breaks down.
As none of them have any motoring knowledge, they decide to walk. Each of them decides to take one thing with her.
The first brunette takes some food in case she gets hungry, the second brunette takes some water in case she gets thirsty and the blonde takes a car door.
When questioned about her choice, the blonde replies:
"Well, if I get hot, I can roll down the window!"
Theodosius DobzhanskyDied 18 Dec 1975 at age 75 (born 25 Jan 1900). Ukrainian-American geneticist and evolutionist whose work had a major influence on 20th-century thought and research on genetics and evolutionary theory. He made the first significant synthesis of Charles Darwin's theory of evolution with Gregor Mendel's theory of genetics in his book Genetics and the Origin of Species (1937). From 1918 his research gave experimental evidence that genes could vary far more than geneticists had previously believed. Thus, successful species tend to have a wide variety of genes that, while redundant in its present environment, do provide a species as a whole with genetic diversity. Such diversity enables the species to adapt effectively to changes in the surrounding environment—the basis for modern evolutionary theory. |
