These humanoid hosts willingly took on their parasitic pals. Video of 1Wj3xn-8y0Q The Arrival This small, yet effective, thriller stars Charlie Sheen as a radio astronomer whose search for extraterrestrial life leads him to discover a conspiracy involving power plants shades of Quatermass 2 , greenhouse gases, alien imposters and miniaturized black holes. It's a smart, involving mix, cleverly written by David Twohy who also directed , and it plumbs a lot of the same interesting territory as The X-Files. The movie's themes about over-consumption of natural and human-made resources still ring true today and Kronos remains a striking sci-fi creation. In the long run, infection by a Ceti eel can lead to madness — or death. It was also one of the first sci-fi movies to be shot in full color, and featured some of the striking production design that was a Menzies hallmark.
Zombie Ants ] 2. Video of 4p7CRVnL0a8 Invaders from Mars He's all but forgotten now, but director William Cameron Menzies was responsible for two of the most innovative and imaginative sci-fi films of all time: In fact, joining with a parasite was a competitive venture, with potential hosts having to pass certain tests and be approved by a special commission. The confrontation with the invaders at the end is, ironically, probably the weakest part of the film. Yet, introducing a new species to an ecosystem can often create unintended consequences. The Devil You Know Biological control of invasive species, by introducing their natural enemies into the mix, has a long, and some would say successful, history. Video of dxwxL6xDT3s Kronos This cult gem is one of many sci-fi outings from the '50s that has endured for years due to its unique title menace and a more thoughtful than usual approach to its subject matter. Best avoid the upcoming film "Prometheus," a quasi-prequel to the horror film "Alien" that hits American theaters June 8. Plus, it's a reminder that Charlie Sheen could deliver on screen, before he became a tabloid disaster. The green crab, however, has become an invasive species, spreading throughout the Atlantic, and even to the Eastern Pacific along the shores of California and Washington. While we may yearn to know whether there is life in the universe beyond the human race, we wonder what would happen if they came to us first -- and weren't friendly. Meant as a throwback to pulp '50s sci-fi, the movie features all of Gunn's quirky touches and is never less than thoroughly entertaining, even as it's being utterly disgusting. For example, a T. Shedding its hard shell and injecting itself into the body of a host crab, Sacculina becomes its puppet master, preventing the crab from molting, growing, regenerating, digesting and reproducing. This group of wasps, which encompasses multiple species, lay their eggs in caterpillars, beetles, insects and other bugs. Humans can fall victim to T. An alien ship parked in deep space fires an object at the Earth that turns into a massive, four-legged machine. Eager young newlywed Marge Gloria Talbott discovers after her honeymoon that her husband, Bill Tom Tryon , has lost all interest in and affection for her and just about anything else in his life, including his beloved dogs. In fact, the movie almost plays its story too straight compared to its descendants, but Harryhausen's effects are always a hand-crafted joy and the film's final battle sequences are thrilling, as the invaders lay waste to a number of famous landmarks. Willing Infection Star Trek's Trill Symbionts were worm-like creatures that lived in humanoid hosts from the planet Trill. Still, as part of the wavelet of "ironically hip" genre outings that included films like Scream and Final Destination, The Faculty still manages to eke out some chills thanks to its charismatic cast and Rodriguez' pulpy sensibilities. Do you agree with our picks? Video of nxVxtvJWoqs Earth vs. According to the still-controversial hygiene hypothesis, an increasingly sterile environment has led to a rise in autoimmune disorders and allergies , including debilitating disorders like celiac disease. In fact, it's the cause of a very common sexually transmitted disease called trichomoniasis. Those in favor of introduction of the parasite point to a Australian experiment where different species of crab were exposed to Sacculina, but only the invasive green crabs were infested by the parasite. There is also value of another kind in French actress Mathilda May's completely unclothed alien energy vampire, one of three awakened aboard their derelict ship and inadvertently let loose to wreak havoc in England.
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