Keystone species mussel population explodes uncontrollably, driving out most other species. These creatures need not be apex predators. Sea stars are prey for sharks, rays, and sea anemones. Sea otters are prey for orca. The jaguar, whose numbers in Central and South America have been classified as near threatened, acts as a keystone predator by its widely varied diet, helping to balance the mammalian jungle ecosystem with its consumption of 87 different species of prey. The lion is another keystone species. Keystone mutualists are organisms that participate in mutually beneficial interaction and the loss of which would have a profound impact upon
Predator (fictional species) soldiers before beginning to hunt an elite paramilitary rescue team sent to rescue what they have been told are presidential cabinet ministers kidnapped by guerrilla forces. The Predator dispatches the team members one by one with its array of weaponry until Major "Dutch" (Arnold Schwarzenegger) is the last one alive. Dutch eventually confronts the creature, covering himself in mud to hide his heat signature from the Predator's thermal imaging, and setting up numerous booby traps. Though he manages to disable the Predator's cloaking ability, the Predator manages to capture him, and then, in a display of Honor, discards his mask