Darwin's Four Postulates
For example, Russian scientists have discovered that population of the Far Eastern leopard is increasing and went from 30 to 80 species in 5 years. Since more species have been created, we know that the population of leopard has evolved, thus creating different species. Since more species are created, the increase of the population is bound to happen.
Darwin found out an example of this postulate on his trip to the Galapagos. He noticed that some birds had different size of beaks. The difference in this characteristic is needed for some birds to survive. Those that feed on flowers, have a longer, slimmer beak. On the other hand, those that feed on seeds and shells have a wider, tougher, and stronger beak n order to properly break down their food. These variations are due to their geographical location. Darwin found out these differences on birds living in different islands, therefore having different diet habits.
One example of competition in history is the competition between megalodons
and killer whales. Scientists have discovered that the huge 60 ft shark went extinct due to competition. The diversity of its prey decreased and its competition increased. Due to the lack of prey available for the species, it led it to its extinction.
Beall, A. (2016). Fossils of sixty foot shark reveal species wiped out by competition. Mail Online. Retrieved 5 April 2016, from http://www.dailymail.co.uk/sciencetech/article-3517621/Megalodons-wiped-killer-whales-invaded-Competition-food-drove-60ft-sharks-extinction-2-million-years-ago.html
Harun Yahya. (2016). The True Origin of Species. M.harunyahya.com. Retrieved 5 April 2016, from http://m.harunyahya.com/tr/works/592/Darwinism-Refuted/chapter/40/The-True-Origin-of-Species
Society & Culture. (2016). Russia sees population of Far Eastern leopards increase from 30 to 80 species in 5 years. TASS. Retrieved 4 April 2016, from http://tass.ru/en/society/862587
New York Apologetics. (2016). 4 Quotes on Natural Selection Everyone Should be Aware Of. (2016). New York Apologetics. Retrieved 6 April 2016, from http://www.newyorkapologetics.com/4-quotes-on-natural-selection-everyone-should-be-aware-of/