useless trivia: What Word Means: A Thick Felted Indian Or Persian Rug?

Questions

The Ozark blind salamander begins life with eyes and plumelike gills. As the animal matures, its eyelids fuse together and the gills ----------?

The female condor lays a single egg once every ----------?

---------- silk is an extremely strong material and its on-weight basis has been proven to be stronger than steel. Experts suggest that a pencil-thick strand of silk could stop a Boeing 747 in flight.?

Tiger cubs are born blind and weigh only about 2 to 3 pounds (1 kg), depending on the subspecies. They live on milk for 6 to 8 weeks before the female begins taking them to kills to feed. Tigers have fully developed canines by 16 months of age, but they do not begin making their own kills until about ----------?

The part of the foot of a horse between the fetlock and the hoof is the ----------?