Question

What is the meaning of Survival of the fittest?

Answer 1

The expression "survival of the fittest" comes from Darwinian evolutionary science and refers to the principle of natural selection. Reproductive fitness is how the biological conception of adequacy is defined. The expression "sustainability of the form which would transmit more replicas of itself in succeeding generations" is better defined in Darwinian terms.

Complete answer:
The phrase "survival of the fittest" was popularized by British naturalist Charles Darwin in his book "Origin of Species," which indicated that animals that are most adapted to their surroundings have the greatest chance of surviving and breeding.
Because the "struggle for existence" is conditional and thereby not fundamental, Darwin did not perceive evolution as the survival of the fittest; rather, he considered it as the survival of the fitter. Conversely, with a shift in conditions, the victors in terms of species within habitats could become losers.
Members in any species that can change dramatically and establish new species are sustained through the survival of the fittest. The ecosystem and ecological complexes are continually changing, and the fittest must breed more fit progeny to ensure their survival. This is when evolution enters the picture. The survival of the fittest is directly linked to evolution, and it does not necessarily mean that the most sophisticated survive.

Note:
The term "survival of the fittest" relates to natural selection, which is a factor that causes evolutionary change. It is inherently unfit to thrive without transmitting on one's genes to the next generation. Many creatures are the "fittest" because they interact rather than compete with other organisms.