A New York University professor returns from a rescue mission to the Amazon rainforest with the footage shot by a lost team of documentarians who were making a film about the area's local cannibal tribes.
Jason Crockett is an aging, grumpy, physically disabled millionaire who invites his family to his island estate for his birthday celebration. Pickett Smith is a free-lance photographer who is doing a pollution layout for an ecology magazine. Jason Crockett hates nature, poisoning anything that crawls on his property. On the night of his birthday the frogs and other members of nature begin to pay Crockett back.
A mutated rat has been let loose in a city.
Roar follows a family who are attacked by various African animals at the secluded home of their keeper.
A large spider from the jungles of South America is accidentally transported in a crate with a dead body to America where it mates with a local spider. Soon after, the residents of a small California town disappear as the result of spider bites from the deadly spider offspring. It's up to a couple of doctors with the help of an insect exterminator to annihilate these eight legged freaks.
In 18th century France, the Chevalier de Fronsac and his Native American friend Mani are sent by the King to the Gevaudan province to investigate the killings of hundreds by a mysterious beast.
Frank and Katrin return to Frankfurt to stop the scientist responsible for unleashing the plague of genetically mutated vermin upon the city.
Juvenile delinquents are sent to a small British island after a fellow prisoner's death, where they must fight for survival.
Geologists encounter a giant alligator while investigating an active volcano in Hawaii.
Ted and his family have just moved to the sleepy coastal town of Gull Island so that he can complete work on his thesis. Everything couldn’t seem more picturesque about their new, seaside home… that is, except for the increasing number of aggressively behaving birds.
Inspired by a true story, an oddball group of cops, criminals, tourists and teens converge in a Georgia forest where a 500-pound black bear goes on a murderous rampage after unintentionally ingesting cocaine.
A friendly St. Bernard named "Cujo" contracts rabies and conducts a reign of terror on a small American town.
Sir Robert Beaumont is behind schedule on a railroad in Africa. Enlisting noted engineer John Henry Patterson to right the ship, Beaumont expects results. Everything seems great until the crew discovers the mutilated corpse of the project's foreman, seemingly killed by a lion. After several more attacks, Patterson calls in famed hunter Charles Remington, who has finally met his match in the bloodthirsty lions.
The heat of a meteor crashing into the lake incubates a prehistoric egg, which grows into a plesiosaur-like monster that terrifies the community.
After a country family of five take in charming cousin Julie, whose parents recently died in a car crash, their teenage daughter Rachel grows to suspect that Julie has a sinister agenda.
A murderous baboon escapes from a laboratory and roams the research building, and begins to kill some teenagers who are also in the building playing a Dungeons-and-Dragons type game.
A man who recently completed rebuilding a townhouse becomes obsessed with a rat infestation until it becomes an interspecies duel.
After an overly ambitious businessman transports an 80-foot python to the United States, the beast escapes and starts to leave behind a trail of human victims. An FBI agent and a snake specialist come up with a plot to combat the creature by pitting it against a bioengineered, 70-foot boa constrictor. It's two great snakes that snake great together!
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.]
When the body of a man is found completely destroyed in the swamps in Louisiana, the medical investigator Sam Rivers is assigned to investigate the murder. He travels with the biologist Mary Callahan to the location where the victim lived in a floating house and he meets his family and friends. They find that Chinese snake-heads genetically engineered that belong to a wealthy hunter are attacking and killing the locals. While the group fights to survive, the hunter Jeff arrives with his team to hunt the predators.