what is evolutionary divergence?

http://en.wikipedia.org/wiki/Divergent_evolution

mutations in evolution lead to niches, and then follow on mutations lead on, and on. In time, species become specialized. Most large cats came from the Sabre Tooth Tiger, but frankly, the divergences (lions, tigers, panthers) are quite unique.

i need pictures of cardiac,smooth and skeletal muscles

Evolutionary divergence refers to the process by which two or more species evolve from a common ancestor and become increasingly different from each other over time. This divergence occurs as a result of genetic mutations, natural selection, and environmental factors that cause variations within populations.

To understand evolutionary divergence in more detail, it would be helpful to take the following steps:

1. Start with a common ancestor: Evolutionary divergence starts with a single species that gives rise to multiple descendant species. These species may live in different environments or exhibit different behaviors.

2. Accumulation of genetic variations: Over time, genetic mutations occur within the populations of these descendant species. These mutations lead to genetic variations or differences in traits among individuals.

3. Natural selection: As these populations inhabit different environments, specific genetic variations may provide advantages or disadvantages in terms of survival or reproduction. Natural selection acts on these variations, favoring individuals with traits that enhance their chances of survival and reproduction.

4. Reproductive isolation: As populations continue to evolve and diverge, they may experience reproductive barriers that prevent interbreeding. This reproductive isolation can be a result of geographical separation, changes in mating behavior, or genetic incompatibility.

5. Continued divergence: The absence of gene flow between populations allows for further independent evolution. Over time, these populations accumulate more differences and may acquire unique adaptations specific to their respective environments or lifestyles.

6. Resulting in distinct species: Eventually, the accumulated differences between populations can become so pronounced that they can no longer interbreed, resulting in the formation of completely separate species.

It is important to note that evolutionary divergence is a slow process that occurs over many generations and can take millions of years to become apparent. By studying patterns of shared traits, DNA sequences, and fossils, scientists can gain insights into the evolutionary relationships between species and understand how they have diverged over time.