cellular - characterized by or divided into or containing cells or compartments (the smallest organizational or structural unit of an organism or organization); the cellular construction of a beehive; any effective opposition to a totalitarian regime must be secretive and cellular.
They are among the smallest of birds, most species measuring in the 7.5â13 cm (3â5 in) range. Indeed, the smallest extant bird species is a hummingbird, the 5-cm bee hummingbird, weighing less than a U.S. penny (2.5 g). They are known as hummingbirds because of the humming sound created by their beating wings which flap at high frequencies audible to humans.
The Anna's hummingbird typically lays 2 eggs each time she broods. The tiny white eggs are about 0.5 inches long and 0.4 inches wide. The incubation period typically is 16 days, but can range from 14 to 19 days in length. The baby hummingbirds are born with almost no downy feathers and their eyes are closed.