On 27/08/2013 12:07 AM, clipka wrote:
> Am 26.08.2013 23:16, schrieb Orchid Win7 v1:
>> On 26/08/2013 03:49 PM, Warp wrote:
>>> For example, all terrestrial tetrapods (which includes us) have the
>>> same basic limb bone structure: One bone (upper arm) -> two bones (lower
>>> arm) -> a bunch of small bones (wrist) -> a group of long thin bones
>>> (palm/fingers).
>>
>> In a way, that's pretty amazing. But in a way, it would be far more
>> amazing if all these animals did *not* have the same bone structure -
>> that would imply a sudden change in skeletal design, which is quite
>> unlikely.
>
> You mean, like the disconnection of the collarbone from the sternum in
> felids, or the disconnection of the pelvis and complete disappearance of
> hind limbs in cetaceans?

I was thinking more like if there was one member of the frog family 
which has five legs instead of the usual four, or something. THAT would 
be weird...

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