"Ornithurae" Natural Recordings by Native Speakers
The term "Ornithurae" refers to a clade of bird-like dinosaurs and modern birds that includes all birds that walked upright on their legs. It is a group of theropod dinosaurs that evolved from a common ancestor during the Middle Jurassic period, around 150 million years ago. The name "Ornithurae" comes from the Greek words "ornithos", meaning bird, and "oura", meaning tail, and refers to the distinctive feature of birds having a short, bony tail. The clade includes all types of birds, from small hummingbirds to large ostriches, as well as many extinct bird-like dinosaurs.
Ornithopods are a group of herbivorous dinosaurs that lived during the Mesozoic era. The name "ornithopod" comes from the Greek words "ornis" meaning "bird" and "pous" meaning "foot", because these dinosaurs had bird-like hips and feet. They were characterized by their beaked snouts, powerful limbs, and varied body sizes. Ornithopods were likely herbivores, feeding on plants and fruits. Some well-known ornithopods include Iguanodon, Hadrosaurus, and Dryosaurus.
An ornithopter is a type of aircraft that uses flapping wings to generate lift and propulsive force, similar to the way birds fly. The word "ornithopter" comes from the Greek words "ornis" meaning "bird" and "pteron" meaning "wing". Ornithopters are often referred to as "flying machines" or "wing-flapping aircraft". They are still in the experimental phase and are not commonly used for transportation, but they have potential applications in areas such as search and rescue, environmental monitoring, and military surveillance.
Located near or at the oropharynx and stomach, used to describe a surgical approach or procedure, especially in head and neck surgery, or relating to the connection between the oropharynx and the stomach.
Orogeny refers to the process of mountain-building, which occurs when the Earth's lithosphere is compressed, thickened, or deformed, often as a result of tectonic plate convergence or rifting. During orogeny, rocks are subjected to extreme heat and pressure, causing them to fold, fault, and eventually form folds, faults, and mountains. The process can occur over millions of years, shaping the Earth's surface and creating significant changes to the planet's geography.