For years, the most basic definition of a species was that it could not readily interbreed with another species and produce viable offspring. If two organisms could no longer mate and produce fertile offspring that could also reproduce, they were classified as being two separate and distinct species.
Then evolutionists had to come along and muddy the waters with their theories of supposed lineages, going back millions of years, connecting what were once unrelated organisms. They introduced cladograms, phylogenics, DNA tracing and now we see the classification of some plants and animals as nothing more than a confusion between disciplines.
An example could be the black tip sharks of Australia.
Scientists have long believed that there were two distinct species of black tip sharks, common black tip and Australian black tip. The Australian black tip shark is smaller and generally confines its territory to the tropical waters of northern Australia. The common black tip is a larger shark that inhabits the sub-tropical southeastern waters. Studies have been done that indicate the two are genetically different.
However, a more recent study on the black tip sharks yielded not one or two hybrids between the two species, but 57 hybrids have identified so far. At first the hybrid were identified by their different appearance and then later DNA tests verified that they were indeed hybrids.
The results of the discovery have surprised the researchers because sharks mate through a physical union which they thought would preclude any confusion between the species, but evidently not. Now they are going to be studying the health, fitness and extent of range of the hybrids in an attempt to better understand what is happening.
Hybrids like the black tip sharks are not necessarily such a surprise from a creationist point of view. As organisms, plant or animal, disperse into new areas they leave behind some of the genetic information found in the parent population. The amount of separation and environmental changes between the parent and daughter populations will determine the ability to interbreed or not. If the differences are great enough, the two populations can no longer interbreed and result in the formation of a new species.
But in areas where the two populations overlap, interbreeding would still be possible. An example would be the pocket gopher in the United States. The population in the eastern and western US have long been considered to be two distinct species. Yet they are found to exist clear across the country. There is no distinct line separating one species from the other and the populations readily interbreed as you move from one side of the country to the other. But it you try to interbreed individuals from both coasts, they will not be able to mate and produce viable offspring.
This kind of hybridization follows along the understanding of population genetics and fits perfectly in the creation model of a sin cursed world. At the same time, this type of hybridization actually goes against what evolutionary population genetics would predict.
Australia Waters Harbor Hybrid Sharks, Red Orbit, Jan. 3, 2012.
At last, a definitive work on design by a leading biblical creationist…
Today, the ID (intelligent design) movement is capturing headlines (and igniting controversy) around the world. But in the process, many are coming to think that a credible challenge to the dominant Darwinian naturalism of our time means backing away from a clear stand for the truth of the Bible.
Now creationist heavyweight Jonathan Sarfati, whose Refuting Evolution has the most copies in print of any creation book ever, challenges this mindset head on. In the process, By Design is set to become a classic of the creation movementin the same vein as Dr Sarfatis comprehensive Refuting Compromise, which is arguably the most powerful biblical and scientific defense of straightforward Genesis in existence.