In another lesson, we learned about Earth's four spheres. These are the geosphere, hydrosphere, biosphere and atmosphere. Together, they make up all of the components of our planet, both living and non-living.
All kittens should be born with two anatomical openings just below the tail. One is the anus and the other one is the genital area. The primary way to tell a female kitten from a male kitten is by comparing the distance between the anal opening and the genital opening. Rarely, a kitten may be born without an anus. This is a birth defect and is considered very serious and life threatening.
5. Check for adult teeth. If you find larger, adult teeth in a kitten, it is likely four months or older. The timing of the teeth may be a little less precise in an older kitten than it is in a very young kitten, but you should be able to get a good idea of the kittenâs age based on when her adult teeth come in.ou may be able to pinpoint the age of a younger kitten based on characteristics of or changes to the ears. 1  If your kittenâs the ears are stuck close to her head, she is probably less than one week old. 2  Watch for the kittenâs ears to pop up.