Here are some specific examples of what fossas eat:
* Lemurs: Fossas are the main predators of lemurs, and they are responsible for killing more lemurs than any other animal. Fossas typically hunt lemurs at night, and they often ambush their prey from trees.
* Tenrecs: Tenrecs are small, insectivorous mammals that are found in Madagascar. Fossas will eat tenrecs if they can catch them, but they are not as important a prey item as lemurs.
* Birds: Fossas will eat birds of all sizes, from small songbirds to large waterbirds. They typically hunt birds by perching in a tree and waiting for a bird to fly by.
* Reptiles: Fossas will eat reptiles, including snakes, lizards, and crocodiles. They typically hunt reptiles by stalking them on the ground or in the water.
* Insects: Fossas will eat insects, including beetles, crickets, and grasshoppers. They typically hunt insects by searching for them in the leaf litter or on the ground.
Fossas are an important part of the ecosystem in Madagascar, as they help to control the populations of other animals. They are also a threatened species, and there are only an estimated 2,500 fossas left in the wild.