only the healthiest species survive weak and sick individuals usually perish
"Natural selection" is another term often used to describe the concept of survival of the fittest in evolutionary theory.
Survival of the fittest
Natural selection. A much more accurate term.
Natural selection
Natural selection- which is the mechanism driving evolution
Natural selection. A much more accurate term.
Survival of the fittest
The term "fittest" is not actually "fittest to survive" but rather "fittest to survive long enough to reproduce". If one animal lives 20 years, but has 15 offspring, and another lives on 5 years, but manages to have 50 offspring, the latter example would be considered fore "fit" by the standards of Darwin's statement.
Survival of the fittest. Not the BEST, but the fittest.
survival of the fittest
Competition. The struggle of the fittest. The survival of the fittest.
The term that is often incorrectly used to describe evolution by natural selection is "survival of the fittest."