The relatively low cost of the daguerreotype in the middle of the 19th century and the reduced sitting time for the subject, though still much longer than now, led to a general rise in the popularity of portrait photography over painted portraiture.
Fitch fur is the fur of the European Polecat, a member of the weasel family. Its texture is similar to mink, however its coloration differs from mink. While mink underfur is generally a single color with dark guard hair tips, fitch fur shows natural stripes and other color variations. add a comment.
The toothcombs of colugos and hyraxes take a different form with the individual incisors being serrated, providing multiple tines per tooth. The toothcomb is usually used for grooming. While licking the fur clean, the animal will run the toothcomb through the fur to comb it. Fine grooves or striations are usually cut into the teeth during grooming by the hair and may be seen on the sides of the teeth when viewed through a scanning electron microscope.