Carinatae is a taxonomic group within the class Aves, commonly known as the class of birds. It refers to a diverse group of birds characterized by their specific skeletal structure. The term "Carinatae" is derived from the Latin word "carina," meaning "keel" or "ridge," which describes a distinct feature of their breastbone or sternum. This keel-shaped sternum provides a robust attachment site for the flight muscles, enabling these birds to fly with great agility and endurance.
Carinatae comprises a vast array of bird species found across the globe. They include both flightless birds, such as ostriches and penguins, as well as birds renowned for their soaring abilities, like eagles and albatrosses. Their size, form, coloration, and behavior vary tremendously, reflecting the diverse ecological niches they occupy.
The group Carinatae exhibits remarkable adaptations for flight, often possessing lightweight, hollow bones and feathers that facilitate lift and aerodynamic performance. Their wings, modified forelimbs, assist in generating lift and steering during flight. Additionally, these birds typically lay hard-shelled eggs, possess a beak that is adapted to their specific diet, and are endothermic animals, meaning they can regulate their body temperature to thrive in various habitats.
Carinatae encompasses an abundant diversity of bird species, including passerines, waders, raptors, waterfowls, game birds, and more. The group's evolutionary success is testament to the adaptability and biological prowess of birds, making them one of the most captivating and admired animal groups in the natural world.
