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Bay (left) and chestnut (sometimes called "sorrel") are two of the most common coat colors
Lampreys (sometimes also called lamprey eels) are a family of jawless fish
Angioplasty. One form is called balloon angioplasty, shown here. A balloon catheter is threaded into
Joint deformities from rheumatoid arthritis.
Alternative splicing of pre-mRNA for a muscle protein called α-tropomyosin
A thin cleft, called the synapse, separates one cell from another.