Tetrapod Evolution 4of5

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Uploaded by on Nov 3, 2008

Tetrapods are vertebrate animals having four feet, legs or leglike appendages. Amphibians, reptiles, dinosaurs/birds, and mammals are all tetrapods, and even the limbless snakes and whales are tetrapods by descent. The earliest tetrapods radiated from the Sarcopterygii, or lobe-finned fish, into air-breathing amphibians. The first tetrapods are now thought to have evolved in shallow and swampy freshwater habitats, towards the end of the Devonian, a little more than 365 million years ago.

This documentary walks through our early understanding and discoveries regarding the evolution of tetrapods. The list of known fossils possessing transitional features continues to grow.

Osteolepis, Eusthenopteron, Sterropterygion, Panderichthys, Elpistostega, Tiktaalik, Elginerpeton, Densignathus, Ventastega, Metaxygnathus, Obruchevichthys, Hynerpeton, Acanthostega, Ichthyostega, Whatcheeria, Tulerpeton, Pederpes, Greerepton, Crassigyrinus, Pholidogaster, Pteroplax, Baphetes, Balnerpeton, Dendrepton, Silvanerpeton, Proteogryinus, Eoherpeton

Every home should have the Animal Planet channel

http://www.youtube.com/view_play_list?p=05E9C5F10C1EB2B4

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  • God blew the singularity,being cognizant of the flowering that will ensue from all the matter hurled into space..creation through evolution...

  • False. You don't understand your own jargon. First of all, humans are called 'bipeds'.. Four legged animals are quadruped. Tetra pod means four 'limbs'. With emphasis on the limbs rather than the feet, hence the words 'ped' and 'pod'. This is very subtle jargon and is damaging to intellect as it breaks down distinction and categorization for the cause of unification into one governing principle. Which is false. All principle are equally self contained as parts of a whole.

    Good luck with that.

  • @knowwaie Saying 'dog' instead of tetrapod is the same as me calling YOU, hopefully a human beeing ( not an angel or smtn.) 'dog'. The same is also true for cats, pigs, frogs, lizards. Daamn.. that's a lot of dog species. Our textbooks are all wrong DAMNIT!

  • Bullshit. Do you really lie to yourself?

    For over 10 years i've watched as you pieces of shit treated us like we were second class citizens and i've fucking had it. We've all tried to be nice to you but it didn't matter. We're all 'deluded people with an imaginary sky daddy', i've heard it all. It took a while for me to get to this point...

    Then again.. Since i came around i've seen a change people's attitude. This is the only way to gain respect. You just need a good slap in the mouth.

  • @knowwaie

    Ah yes... When the facts dont support you, resort to ridicue, belittlement, and mockery instead.

    Carefully omit the bulk of the reply, and jeer at the fragment you DO quote.

    This is standard YEC tactics.

  • Alright, i apologize for the insults. But you jackasses have to be put in your place.

    I see this garbage every time. Arguing technical jargon is a trade mark of you assholes. I'll say 'dog' instead of tetrapod or pakicetus and it never fails, you will always attack with jargon.

    This would be like you talking to a chemist and saying 'bleach' then the chemist rebutting with "it's not bleach it Sodium hypochlorite". You're always such pious pricks. It's disgusting. Fuck yourself.

  • Haha, you really are this retarded.. You actually just accepted my typo as an accurate age.. I meant to say 140 million years.. This was a understandable mistake on my part. For you, not so much.

    You really have no idea what you're talking about do you?.. I mistakenly wrote 4 million years for the age of the whale and you ran with it and argued that apes are older than whales.. It's quite remarkable how you just exposed yourself. One of us should be ashamed and it's not me.

  • That's right. You were just saying that our grouping of animals is not accurate. So you're saying there is more hybridization than we've thought.. Or whatever you want to call it. I know how you psychopaths are, and you're going to attack my use of the word 'hybridization' aren't you?

    I'm not afraid to admit that i'm not an expert in bestiality.. So your attacks on my so called ignorance are not damning. It's comical because my "ignorance" would only be in 'jargon'. You are nothing but jargon.

  • You really are retarded though..

    Look, in any case your struggle is obvious. When people say 'apes changed to humans' or dogs (or cows) changed to whales we're not actually saying what your handicap leads you to think we're saying. The fact that you lunatics bitch about semantics shows how dishonest you are.. Or how retarded you are. Whichever it may be. Only your doctor knows.

  • @knowwaie

    Wow are you arrogant. You actually did say "a dog did become a whale", which pretty much sums up your understanding of evolution.

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