A striking and gentle giant of the skies in the Mariana Islands, including Guam and the Northern Mariana Islands. Like other flying foxes, this bat has large, soulful eyes, a fox-like face, and wide, leathery wings that can stretch over a meter across. Its fur ranges from glossy black to deep brown with golden highlights, especially around the neck, giving it a warm, regal look. These bats are frugivores, meaning their diet consists of fruit, nectar, and flowers, which makes them essential forest gardeners — spreading seeds and pollinating plants as they glide through island forests.

Mariana fruit bats are day-roosting and night-feeding, often gathering in treetop colonies called camps, where they groom, socialize, and keep watch for predators. When dusk arrives, they take off in small flocks, navigating island breezes to find ripe breadfruit, figs, and other native fruits. They feed with delicate precision, using their nimble thumbs and sharp teeth to peel and chew fruit pulp, then spit out seeds that later sprout into new trees. Think of them as flying farmers, tending the rainforest from above.

These bats live slow, careful lives, forming small family units and raising just one pup per year. Mothers wrap their babies in their wings like blankets, and pups cling tight as they learn to maneuver and eventually take flight. Social interactions are gentle but expressive — soft chattering, grooming sessions, and wing-stretching displays strengthen colony bonds. Their flight is surprisingly graceful for such large bats, with smooth glides that make them look almost like birds silhouetted against the tropical sunset.

Sadly, the Mariana fruit bat has faced dramatic declines. Habitat loss, hunting, invasive predators like brown tree snakes on Guam, and disturbances to roosting sites have all taken a toll. Today, the species is threatened, and in many areas, sightings are rare.

Distribution

Country

Population est.

Status

Year

Comments

Guam

2019

Nort. Mariana Is.

2019