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
Masai, Johor Masai, Johor Masai () is an area in Pasir Gudang, Johor Bahru District, Johor, Malaysia, and is the oldest neighbourhood of Johor Bahru town. It is located 25 kilometres from the Johor Bahru city centre. Masai is located on route J10 which leads to Kong Kong, a fishing village along Johor River. The main access roads to Masai are Jalan Masai Lama(J10) and Pasir Gudang Highway(Federal Route 17). Many pre-war buildings are still well preserved. Masai, like many of the towns in the Johor Bahru district, catered to the rural population of farmers and rubber plantation workers throughout the early