The muscle that originates on the temporal fossa is the temporalis muscle. It is a fan-shaped muscle located on the side of the head. It is responsible for the movement of the jaw, including chewing and closing the mouth.
Fossa
Cryptoprocta ferox Madagascar's largest carnivore, the fossa is an unusual member of the civet family. It hunts lemurs in trees at night and has a strange courtship and breeding system.
Source: http://www.bbc.co.uk/nature/wildfacts/factfiles/603.shtml
Technically, The Fossa Is An Apex Predator. However The Only Possible Natural Predator Is The Nile Crocodile.
Answer: The Main Predator Are Men.
Bats are similar to the Mouse Lemur because of the sense of smell
Bobcats and the Lynx are like the Fossa because of the long tail and ears
Hairless foot pads and long claws give the fossa a good grip, and a long tail helps it balance in trees high above the ground.
There are a number of zoos in the United States that have Fossa including San Diego Zoo, Dallas Zoo, Bronz Zoo, Atlanta Zoo, Rosamond Gifford Zoo and Cleveland Metroparks Zoo.