Bekhorot 40: A Mishnayot Festival on Blemishes

There are 7 mishnayot on this daf! (though we'll save the last one for tomorrow). 1 - On testicles and the nature of testicular blemishes. 2 - On the fact that blemishes are not how things are supposed to be; for example, an animal that should have 4 legs, but instead has 3 or 5. 3 - On blemishes that are not immediately discernible. 4 - On the jaw of a first-born animal, where the lower jaw juts out farther than the upper jaw, and how that's a blemish. 5 - On extra cartilage in the ear, and how that's a blemish. 6 - A list of blemished animals, whether in the eye or the leg or the mouth/jaw or the ear or the testicles... and whether these blemishes are discernible.