Some people argue that the meteorite that crashed into the earth to kill most if not all dinosaurs. But others also suggest that dinosaurs were killed by bacteria that had developed to get past their immune systems.
Paleontology is the study of prehistoric life, including organisms' evolution and interactions with each other and their environments.
7 foot tall carnivorous flightless birds
It is traditionally assumed that last of the dinosaurs became extinct 65.5 million years ago in the K-T Extinction Event. Birds and birds alone are the direct decedents of dinosaurs. Other species commonly associated with dinosaurs such as the crocodilians evolved from more ancient ancestors of dinosaurs the archosaurs. Dinosaurs evolved after the crocodilians had already split of onto another branch of the evolutionary tree. There is however growing support based on the fossil record that birds not only directly evolved from dinosaurs but are so similar in morphology that they are in fact dinosaurs in their own right.
A meteor hit the earth and caused severe condition that organisms could not survive.
Paleontologists study prehistoric forms of life, including dinosaurs, ancient mammals, and early forms of plants. They use fossil evidence to understand the evolution and behaviors of these organisms that lived millions of years ago.
Cretaceous-Paleogene extinction event was one of the most important events in Earth history. When a massive asteroid fell on the coast of Yucatan in modern Mexico it eradicated about half of all animal species, including the dinosaurs. But many of other organisms, such birds, survived. Also survived many organisms with light mass: early mammals, insects, some reptiles, etc.
no they are not
Extinction.
The organisms that were affected the most by the mass extinction events in Earth's history were typically those that were less adaptable or specialized, such as large dinosaurs or marine organisms with specific environmental requirements. These events caused widespread extinctions and disruptions to ecosystems, leading to a significant loss of biodiversity.
Extinction is where a species of a animal/plant totally dies out and there are none left, like Dinosaurs for example, or Dodos.
An extinction event.
This term is extinction.