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
Aliens/Predator: Deadliest of the Species covers half of the second "AVP Omnibus". The Story takes place in the futuristic Alien vs. Predator universe, where Earth has been overrun by Aliens, and the social elite have taken refuge in gigantic skyliners. Caryn Delacroix is the protagonist, with an unclear past regarding both the Aliens and Predators throughout most of the comic. An artificial intelligence serves as the primary antagonist, while the Xenomorphs and the Predator are many times in cooperation with Delacroix and her companions for parts of the series, in particular a Predator called "Big Mama". Apart from the Aliens/Predator universe crossover, Claremont also made