Introduction to evolution. Evolution is the process of change in all forms of life over generations, and evolutionary biology is the study of how evolution occurs. Biological populations evolve through genetic changes that correspond to changes in the organisms' observable traits. Genetic changes include mutations, which are caused by damage or replication errors in organisms' DNA. As the genetic variation of a population drifts randomly over generations, natural selection gradually leads traits to become more or less com
According to Universe of Symbolism, the butterfly is a sign of spiritual growth. The animal embodies the principle that there are times in life where the past must be done away with so that new life can begin. Butterflies can also be a symbol of beauty and grace. Feminine energy is also represented by the butterfly. The animal teaches the magic of believing. Universe of Symbolism also asserts that Reiki healing is symbolized by the butterfly.
Some nice words or verses can be added to a butterfly tattoo design, which gives it a whole new meaning. The name of a loved one can be incorporated with it to dedicate the tattoo to a very special person in oneâs life. The specialty of a butterfly tattoo lies in its versatility, with respect to its color, size and design. A butterfly tattoo can look as impressive in a monochrome as it can, when inked in a combination of bright colors and with colorful elements like flowers added to the design. Also, it can look equally god in small, medium or large sizes.