Are animals able to tell the difference between other animals. I dont mean like a cat seeing a dog and thinking "Oh no its a dog". I mean how does prey distinguish predator or threat? Say for instance a pack of wolves are they aware they are of they are the same species? Ive never heard of a pack with a mixture of pack animals say Hyenas and Lions they appear to naturally "not get along". There are also animals which will warn others of danger such as predators, how are they able to distinguish this as a threat? I really hope this makes sense.