Evolution of the mammalian middle ear: the basics.

The mammalian inner ear looks, to me, like gods built them: they look designed. That design isn't optimum, so those gods were somewhat incompetent or perhaps merely drunk when they designed the mammalian ear, but all in all it is a good design.

Of course several fossils have been found that shows how the mammalian ear evolved from reptiles, and from jawless fish to reptiles. If the dogs did the designing, they used evolution and 550 million years to do it. Sounds like a government paid union job to me: good pay and plenty of leisure to get the job done.

Thus, several reptilian jawbones (the quadrate, articular, and angular) were extensively reduced and modified gradually to form the modern mammalian middle ear. This is a fact, and one can see the process in the fossil record.

To briefly summarize, up there in your head, and mine presumably, there are two ancient reptile jaw joints: the incudo malleolar; two reptile jaw bones (the malleus), two reptile bones that used to anchor the jaw to the skull (the stapes), two reptilian fibrous joint remnants (most of the ear drum), and assorted reptile vesicles you might not have known were up there.

Category:

People & Blogs

Tags:

• ear
• evolution
• science
• Malleus
• incus
• stapes
• reptilian
• jawbones
• quadrate
• articular
• angular
• creationism
• transitional
• fossil

[markcatanz1]

You can take every living reptile and mammal today and piece together the required similiar structures to support your case for evolutionary history. That is a fact. I can't believe you people are so naive as to fall for this crap.

[Desertphile]

"You can take every living reptile and mammal today and piece together the required similiar structures...."

Idiot.

[Starmexus84]

Also what flaws are there in the middle ear? You said there were some design flaws.

[Desertphile]

"Also what flaws are there in the middle ear?"

You mean besides their fragility and their likelihood of being damaged by the time one is around 40 years old? Besides their being prone to infection that antibiotics cannot treat but only surgery can?

"You said there were some design flaws."

Ears were not designed.

[sunergos7]

this is a biological narrative of evolution not evidence for it. tell me qnother story

[Desertphile]

"this is a biological narrative of evolution not evidence for it."

Idiot.

[foroparapente]

Humans did not evolve form apes, they were created by god.

However, god did evolve form a god ape, that is a fact.

[Davidbensonxyz]

Gah, I can't watch this guy. He is grotesque. I agree with the sentiments in this video, evolution is a fact, but he just puts his point across in such an off putting way. I remember one video where he just starts chanting, "GRADIDY GRADIDY" over and over. He was trying to sat "Gravity" but just messed it up.

[erikstevenpierro]

no such thing as god.

[Kargoneth]

I like my lizard brain...

[zipity25]

It's called evolution, idiot.

[matemanrediff]

Wonder how gullible people can be to swallow all that trash...a lizards bone in his ear?! What does he know about the design of the ear?!

[AdventGuard33]

your body is quite toxic...there is nothing wrong with our bodies...rather...our diet and lifestyle

[markcatanz1]

You have been terminated from future dialogue. You are no longer worthy of intelligent conversation since you have been unable to demonstrate an interest in topic you addressed.

[markcatanz1]

Call me an idiot, perhaps you don't understand. It is a fact that every stage believed to be involved in the evolution of eye is represented in a living species today. We don't need fossils, the evidence is living today. The same can be demonstrated regarding all stages of skull and jawbone evolution in mammals and reptiles. Why? Life is so diverse that if a series of fossil causing events happen sporadically over the next 5,000 years we'd find the same fossils but attribute them to evolution.