If you thought the ocean was a tranquil place, you’d be dead wrong. Centered around a normally majestic marine mammal, and one of the few animals that kills for revenge, this film stars Richard Harris, Charlotte Rampling, and Bo Derek. 

Talk about a movie that will make your skin crawl. Ashley Judd and Michael Shannon star in this tense and paranoid love story about a couple who are convinced they’re infested by blood-sucking aphids.

This next title might have you looking at your pup a little differently. Based on a bestselling Stephen King novel, this canine horror follows a family whose St. Bernard suddenly stops being man’s best friend and starts acting like man’s worst nightmare.

Part 20,000 Leagues Under the Sea, part Alien, this 1989 sci-fi horror shines a light on a deep-sea creature of hellish proportions. A result of a genetic experiment gone wrong, the monster will prove nearly impossible to kill for the mining crew it’s now hunting.

This one proves that just about any animal can be terrifying in the hands of the right filmmaker. When a cantankerous old millionaire poisons his estate with pesticides, the inhabiting animals fight back. One animal in particular wants to see the old man croak. 

What drives humans to turn into animals? This 1940 horror explores the question through a scientist’s desperate quest to concoct a cure for polio. In need of spinal fluid from human specimens, he’ll resort to savage means in order to obtain it.