Birds

BIRDS

Present day birds are belived to be the closest relatives to prehistoric creatures as it can get. It is believed that birds developed from small reptile like creatures during the late Jurassic Period.

Birds reproduce sexually like most mammels, but the interesting part is that male birds are the most beautiful. The male bird attracts the female bird using its bright colors and flamboyaent movements.

For centuries, humans have been trying to figure out how it is possible for such a small creture to have the ability to fly. The birds structure allows it to easily migrate, spreading the population of the creature and to fertilize plants and foods necassary for the entire ecosystem to function correctly.

Birs are really nifty arent they? Birds are endothermic vertebrates, with feathers, a beak with no teeth, they lay hard shelled eggs, have a high metabolic rate, a four-chambered heart, and a lightweight but strong skeleton. This makes birds the most aerodynamic of all flying creatures.

Taxonomy

Evolutionary history

Morphology and Physiology

Reproduction

There are over 300 species of birds, each with very different characteristics. Some examples are emus, penguins, hummingbirds, owls, pigeons, doves, toucans, flamingos, woodpeckers, and spoonbills, all very very different.