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Γραμμή 124:
Except for mothers with young and occasional observations of pairs of males, animals are usually found alone, so that the species is considered solitary.{{r|1986Köhncke|2003NatHist-13b|2005Hawkins}} A 2009 publication, however, reported a detailed observation of cooperative hunting, wherein three male Fossas hunted a {{convert|3|kg|lbs|abbr=on}} sifaka (''[[Propithecus verreauxi]]'') for 45 minutes, and subsequently shared the prey. This behavior may be a vestige of cooperative hunting that would have been required to take down larger [[subfossil lemur|recently extinct lemurs]].{{r|2009Luhrs}}
Fossas communicate using sounds, scents, and visual signals. Vocalizations include purring, a threatening call,{{r|1986Köhncke}} and a call of fear, consisting of "repeated loud, coarse inhalations and gasps of breath".{{r|2003NatHist-13b}} A long, high yelp may function to attract other Fossas. Females mew during mating and males produce a sigh when they have found a female.{{r|1986Köhncke|2003NatHist-13b}} Throughout the year, animals produce long-lasting scent marks on rocks, trees, and the ground using glands in the anal region and on the chest.{{r|1986Köhncke|2003NatHist-13b
=== Diet ===▼
▲=== Diet ===
The Fossa is a [[carnivore]] that hunts small to medium-sized animals, from fish to birds. One of eight carnivorous species endemic to Madagascar, the Fossa is the island's largest surviving endemic terrestrial mammal and the only predator capable of preying upon adults of all extant [[List of lemur species|lemur species]],{{r|1999Dollar|2005Patel}} the largest of which can weigh as much as 90% of the weight of the average Fossa.{{r|2003NatHist-13b|2005Patel}} Although it is the predominant predator of lemurs,{{r|2005Patel|1995Wright}} reports of its dietary habits demonstrate a wide variety of prey selectivity and specialization depending on habitat and season; diet does not vary by sex. While the Fossa is thought to be a lemur specialist in [[Ranomafana National Park]],{{r|1997Wright}} its diet is more variable in other rain forest habitats.
{{Double image stack|left|Microcebus murinus -Artis Zoo, Amsterdam, Netherlands-8c.jpg|Diademed ready to push off.jpg|200|The Fossa's diet includes small- ([[Gray Mouse Lemur]], above) to medium-sized ([[Diademed Sifaka]], below) mammals.}}
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