Embryo implantation in humans. After fertilization the human embryo begins a 4 day long journey down the fallopian tube and into the uterus. When the embryo reaches the blastocyst stage it develops two distinct populations of cells. The outer cell mass,called the trophectoderm, and the inner cell mass.
Cat eye glasses. Named after their resemblance to the shape of a cat's eye, cat eye glasses are probably the most popular style of vintage eyeglasses. Though cat eye glasses were around since the 1950's, they reached their peak popularity when Audrey Hepburn wore a pair in the 1961 film Breakfast at Tiffany's.
A times it can be hard to find information on Tiger Eye Gemstones because of the various spelling of the name. Tiger Eye, Tigers Eye and Tiger's Eye all are speaking of the same stone, which is also occasionally listed as Cat's Eye.igers Eye stone comes in a few different colors, the most common of which are gold, blue and red tiger eye. All have the flash of color that resembles the flash you see in a tigers eye when the light hits is at night and this is where the name Tiger Eye comes from.