probably hunting larger prey in groups

Olorotitan arharensis reached a length of about 8 meters

measuring up to 22 centimeters in length in some specimens

where it probably hunted fish and other marine organisms

Utahraptor fetus Scale:1:1 probably hunting larger prey inUtahraptor ostrommaysorum was the largest known representative of the dromaeosaurids, a group of theropod dinosaurs closely related to birds. This predator lived in what is now Utah, USA, during the Early Cretaceous Period, approximately 125 million years ago. With an estimated length of between 6 and 7 meters and a weight that could exceed 500 kilograms, Utahraptor was a formidable hunter, equipped with sickle shaped claws on its hind feet and agile