All planes have wings. Parts of an Airplane - Wings. NASA All planes have wings. The wings are shaped with smooth surfaces. There is a curve to the wings which helps push the air over the top more quickly than it goes under the wing.
Some females have three litters each year, with a gestation period of approximately 65 days. Cats, like many wild animals, overproduce to ensure survival of the species, thus feral cats have many kittens. Kitten mortality rates are usually very highÃ¯Â¿Â½over 50% among kittens. Many become sick from usually curable diseases, such as respiratory infections, but without medical treatment, the weak kittens usually perish. Those cats surviving the first six to eight weeks often build up immunities to common cat diseases, and once controlled and stabilized, a colony remains healthy and viable for many years under the care and supervision of caretakers.
Blue Eyes on Kittens. Most adult cats do not have blue eyes, although some do. Nevertheless, cat owners may notice that kittens' eyes are blue at first. Many kittens have blue eyes (although not all kittens do) during the process of eye opening that lasts the first two to three weeks of life.