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a railroad
two fat guys eating Pork ribs at a bar :P
Dinosaur
A train track
Lower most two pairs of ribs (11th and 12th) are known as floating ribs because they are only attached to vertebrae but not to the sternum.
The ribs join at the back. In front they are connected to the thorasic basket, also known as the breast bone. Only the last two ribs do not join each other . They are the floating ribs.
There are not just three real numbers but an infinity of them Not only that , between any two of them there is an infinity of real numbers. And between any two of them ...
nonvascular
Neither those two groups only refer to animals! Vertebrates are animals with backbones, invertebrates don't have backbones.
Floating ribs are four atypical ribs (two lowermost pairs, XI-XII) in the human ribcage. They are called so because they are attached to the vertebrae only, and not to the sternum or cartilage coming off of the sternum. Some people are missing one of the two pairs. Others have a third pair. Most, however, possess only two pairs. Their position can be permanently altered by a form of body modification called tightlacing, which uses a corset to compress and move the ribs.
infinity divided by any finite number is also infinity.
Ribs are part of the human body. They are a series of twelve bones in the human body.