Natural horror (also known as creature features) is a subgenre of horror films that features nature running amok, typically in the form of animals or plants that kill people or at least pose a threat to them.
Though killer animals in film have existed since the release of The Lost World in 1925, two of the first motion pictures to garner mainstream success with a "nature run amok" premise were The Birds, directed by Alfred Hitchcock and released in 1963; and Jaws, directed by Steven Spielberg and released in 1975. Following Jaws, numerous horror films of a similar narrative were produced, including Grizzly (1976), Piranha (1978), and Alligator (1980). Today, natural horror films are still produced, with varying tones, such as Birdemic: Shock and Terror (2008) and The Shallows (2016).