Here's a good throwback nature film from back in the day showing how a black jaguar hunts and kills a helpless arapaima.
Depending on your age this may take you back to those Sunday nights at home with the family when the TV channel could only be changed by getting up off of your butt and manually doing it.
Now that some of you are looking at me like I have three heads, take a time out and watch this old school film of a jaguar doing what it does best: hunt.
In the film the narrator, whose voice those of you my age might recognize, calls the fish by its indigenous name of pirarucu which you may know better as the arapaima. These are native to the South American Amazon River basin and can get really big!
In Africa and Asia black panthers are known as leopards; the same panthers in the Americas are known as jaguars and they're all as hungry as this one.