Kelenken

Haste, First strike
It is not entirely clear how Kelenken captured and killed its prey. As a large flightless carnivore, Kelenken likely chased down and killed its prey with several bone-shattering blows from its massive beak. Another possibility is that it may have picked up its prey item, then proceeded to shake it vigorously in order to break its back. It is also possible that Kelenken may have also been a scavenger, driving off other predators with its impressive size.