Carnivorous dinosaurs, also known as theropods, were meat-eating reptiles that roamed the Earth during the Mesozoic Era. They had sharp teeth and claws, which helped them hunt and consume other animals. Some well-known examples include Tyrannosaurus rex and Velociraptor. These dinosaurs varied in size and shape, with some being small and agile while others were large and powerful. Many theropods walked on two legs, allowing them to run quickly in pursuit of prey. Their adaptations made them effective hunters in their ecosystems.