Bigfoot

An oil company expedition disturbs the peace of a giant ape and brings him back to New York to exploit him.

Martin Brundle, born of the human/fly, is adopted by his father's place of employment (Bartok Inc.) while the employees simply wait for his mutant chromosomes to come out of their dormant state.

Industrialist François Delambre is called late at night by his sister-in-law, Helene, who tells him that she has just killed her husband. Reluctant at first, she eventually explains to the police that he invented a matter transportation apparatus and, while experimenting on himself, a fly entered the chamber.

As a result of nuclear testing, gigantic, ferocious mutant ants appear in the American desert southwest, and a father-daughter team of entomologists join forces with the state police officer who first discovers their existence, an FBI agent and, eventually, the US Army to eradicate the menace, before it spreads across the continent — and the world.

A rogue scientist near a small desert town arouses the suspicion of the town's doctor when his lab assistant is found dead from a case of acromegaly, which took only four days to develop. As the doctor investigates, aided by the scientist's new female assistant, they discover that something is devouring local cattle and humans in increasingly large quantities.

A 'National Geographic' film crew is taken hostage by an insane hunter, who takes them along on his quest to capture the world's largest — and deadliest — snake.

When brilliant, eccentric scientist Seth Brundle makes a huge technological breakthrough in teleportation, he decides to test it on himself. Unbeknownst to him, a common housefly manages to get inside the device and the two become one.

After witnessing the killing of his mate and offspring at the hands of a reckless Irish captain, a vengeful killer whale rampages through the fisherman's Newfoundland harbor. Under pressure from the villagers, the captain, a female marine biologist, and an Indigenous tribalist venture after the great beast, who will meet them on its own turf.

A friendly St. Bernard named "Cujo" contracts rabies and conducts a reign of terror on a small American town.

After a military plane crashes outside of a small American town, its cargo — a genetically engineered, sixty-foot-long python — begins stalking and killing the locals.

A psychotic redneck owns a dilapidated hotel in rural East Texas, where he murders those who upset him or his business, and then feeds their remains to his pet crocodile in the swamp beside his hotel.

After accidentally killing a bear cub while celebrating graduation in the woods, four teens become the target of a seemingly unstoppable Grizzly.

A scuba diving instructor, her biochemist boyfriend, and her police chief ex-husband try to link a series of bizarre deaths to a mutant strain of piranha fish whose lair is a sunken freighter ship off a Caribbean island resort.

The son of the inventor of a matter-transporter, which turned him into a monster when he tried to transport himself along with a tiny housefly, continues to pursue his father's experiment, while his own two sons attempt to extricate him, themselves and the family name from further disaster and scandal.

Fifteen years after his father's experiments with matter transmission fail, Philippe Delambre and his uncle François attempt to create a matter transmission device on their own. However, their experiments have disastrous results, turning Philippe into a horrible half-man, half-fly creature.

All hell breaks loose when a giant grizzly, reacting to the slaughter of her cubs by poachers, attacks a massive rock concert in the National Park. [This sequel to "Grizzly" (1976) was left unfinished after production wrapped prematurely in 1983, and was not officially released until 2020, though a bootleg workprint version had been in circulation for some years prior to this.]

Based on the Stephen King bestselling novel.

When four college students trek to the Everglades to conduct extra-credit research for their biology professor, they become prey to a huge man-eating eel with nasty incisors that’s been terrorizing a nearby Florida community, based on a true story concerning an exotic species of eels that are released in the southeast from Asia. They breathe air and can survive on land.

A mercenary-for-hire accepts a mission from a billionaire to capture a dangerous snake that could possibly help cure a terminal illness.

There's a big drought in Africa. Food and water are scarce. 90,000 wild baboons suddenly start attacking humans and eating them in order to survive. Some people find themselves being hunted by the starving monkeys and must do whatever they can to stay alive.