As so often is the case, one YouTube video of a pack of wolves hunting led me to another hunting video and then another and yadda, yadda, yadda I’m really tired.

Below you will find three videos showing how a wolf pack, lion pride and chimp troop work as an intelligent, cohesive unit to bring down their prey.
 
Warning: The following videos contain footage that some may find graphic. It shows animals being hunted and killed by other animals and may not be suitable for young children. Viewer discretion is advised.