Late_Cretaceous
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There are lots of examples of vestigial organs in nature.
Vestigial DOES NOT MEAN USELESS. Vestigial means a "vestage" or small remnant. Many vestigial organs do indeed serve a function, a secondary function - totally unlike the function of the orginal full blown organ they evolved from.
For example, pythons have vestigial legs - tiny spurs where their ancestors' legs used to be. THese spures do aid in locomotion somewhat, but they are not functional as legs.
Another example are the "glass lizards" which have tiny rudimentary legs that really are too small for walking on - and only serve as secondary aids in locomotion. They are vestigial.
How about the wings of flightless birds. They may be used for mating displays or even defence (as in the ostrich), but are totally useless as organs of flight and are therefore vestigial wings.
How about the eyes on eyeless salamanders (olms), they are barely functional enough to register the presence of light, and are reduced to mere pigment spots on the head. They may be able to tell the salamander if it has wandered out of the cave into the light of day, but nothing more. They have no retina, cornea or lens and are vestigial.
How about the human appendix. I am aware there is some debate on whether they are totally uselss or not (they may serve some limited funciton), but they are nevertheless vestigial remnants of our ancestors digetive systems. My own appendix nearly killed me 2 years ago when it ruptured, and after having it removed my digestion has been much better then it ever was. So I have been better off without that piece of evolutionary baggage.
No transitional species? Comeon, the fossil record is full of them. INfact there are even numerous transitionals still living today. Besides, creationist groups such as "Answers In Genesis" have recommended that the "no transitionals" arguement NOT BE USED - because it is simply untrue.
http://www.answersingenesis.org/Home/Area/faq/dont_use.asp
Nice try buck.
p.s. I wish we could have a toilet flushing sound incorporated into these responses every time we dispose of one of these tired and flawed arguments.
Vestigial DOES NOT MEAN USELESS. Vestigial means a "vestage" or small remnant. Many vestigial organs do indeed serve a function, a secondary function - totally unlike the function of the orginal full blown organ they evolved from.
For example, pythons have vestigial legs - tiny spurs where their ancestors' legs used to be. THese spures do aid in locomotion somewhat, but they are not functional as legs.
Another example are the "glass lizards" which have tiny rudimentary legs that really are too small for walking on - and only serve as secondary aids in locomotion. They are vestigial.
How about the wings of flightless birds. They may be used for mating displays or even defence (as in the ostrich), but are totally useless as organs of flight and are therefore vestigial wings.
How about the eyes on eyeless salamanders (olms), they are barely functional enough to register the presence of light, and are reduced to mere pigment spots on the head. They may be able to tell the salamander if it has wandered out of the cave into the light of day, but nothing more. They have no retina, cornea or lens and are vestigial.
How about the human appendix. I am aware there is some debate on whether they are totally uselss or not (they may serve some limited funciton), but they are nevertheless vestigial remnants of our ancestors digetive systems. My own appendix nearly killed me 2 years ago when it ruptured, and after having it removed my digestion has been much better then it ever was. So I have been better off without that piece of evolutionary baggage.
No transitional species? Comeon, the fossil record is full of them. INfact there are even numerous transitionals still living today. Besides, creationist groups such as "Answers In Genesis" have recommended that the "no transitionals" arguement NOT BE USED - because it is simply untrue.
http://www.answersingenesis.org/Home/Area/faq/dont_use.asp
Nice try buck.
p.s. I wish we could have a toilet flushing sound incorporated into these responses every time we dispose of one of these tired and flawed arguments.
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