Monday, August 15, 2011
Why do many whales have legs and pelvic bones separated from the rest of their skeleton? These vestigial organs are powerful evidence for evolution.
This blog now has 67 posts about the evidence for evolution. The people who most need to study evolution, the world's Christian assholes and Muslim terrorists, will never study any of it because they are proud of their cowardly fear of reality.
One of the most powerful (and most easy to understand) evidences for evolution are vestigial organs, which are also popular with the professional liars for Jeebus because they like to deny their existence. These dishonest assholes for Jeebus would have a difficult time lying about vestigial organs in whales and so they usually just ignore this evidence. If they lie about it anyway at least they don't have to worry about their idiot customers using logic or checking facts. Christian tards love their professional liars because they make them feel good about their incurable mental illness.
As everyone who isn't a religious idiot knows, whales are descended from land animals, and the fossil record of this transition is now complete thanks to recent discoveries in Pakistan. But even without the fossils and even without the DNA evidence that shows beyond any doubt modern whales are cousins of modern hippos, people can easily figure out the ancestors of whales lived on land. All they have to do is look inside a dead whale.
I'm going to let Jerry Coyne (a biologist at the University of Chicago) take over here. I challenge evolution deniers to defend their dead Jeebus after reading this paragraph from page 60 of Jerry Coyne's Why Evolution is True.
Whales are treasure troves of vestigial organs. Many living species have a vestigial pelvis and leg bones, testifying, as we saw in the last chapter, to their descent from four-legged terrestrial ancestors. If you look at a complete whale skeleton in a museum, you'll often see the tiny hindlimb and pelvic bones hanging from the rest of the skeleton, suspended by wires. That's because in living whales they're not connected to the rest of the bones, but are simply imbedded in tissue. They once were part of the skeleton, but became disconnected and tiny when they were no longer needed. The list of vestigial organs in animals could fill a large catalog. Darwin himself, an avid beetle collector in his youth, pointed out that some flightless beetles still have vestiges of wings beneath their fused wing covers (the beetle's "shell").