Mauritius Flying-fox

Fascinating facts about the Mauritius Flying-fox

• A single flying-fox can visit up to 188 fruit trees in one night, travelling up to 40 km across Mauritius to feed. Their stomach is tiny — just 2% of body weight — so they must eat almost constantly, landing on a new branch every 90 seconds to strip figs, mangoes, and native fruits. This frenzy of movement makes them the island's most effective seed dispersers; without them, Mauritius's tropical forest would collapse into silence.
• Their wings span 1.2 metres — longer than a tabby cat is long — and are made of skin so thin you can see through it to the veins underneath. They hang upside-down in roost trees by their feet, a posture that lets them drop straight into flight without a running start. This inversion flips their entire biology: blood pools differently, the heart beats slower at rest, and their brain processes the world right-way-up even when their body is inverted.
• In 1979, only 91 Mauritius flying-foxes were left alive. A cyclone killed so many that the species nearly vanished within weeks. Today fewer than 50,000 exist, making them more endangered than most giant pandas. Their recovery hinges entirely on one island — a biological gamble that a single hurricane or disease outbreak could erase 4 million years of evolution in months.
• They have eyes like a cat and a nose shaped for smelling, not echolocation — a trait that sets them apart from smaller bat species. They navigate by landmark memory and moonlight, plotting routes between favourite fig trees they've visited for years. A flying-fox can remember individual trees scattered across tens of kilometres, a cognitive feat that rivals corvids in spatial intelligence.
• Male flying-foxes produce a pheromone from glands on their shoulders and chest that smells to humans like stale sweat mixed with fermented fruit. During breeding season, they fan these glands constantly, creating a scent-cloud visible from metres away. The females inspect males by their smell alone — a system so specific that a male's scent signature is as individual as a fingerprint, and shapes which partners mate.

At a glance

About the Mauritius Flying-fox

In the twilight skies above the island of Mauritius, a majestic creature stirs, its leathery wings beating in a slow, hypnotic rhythm as the Mauritius Flying-fox takes to the air, its eyes shining like dark jewels in the fading light. With a gentle whoosh, it glides effortlessly across the forest canopy, its agile form weaving between the trees with an uncanny precision, as if drawn by an invisible thread to the sweet nectar and fruit that sustain it. As it flies, its very presence seems a poignant reminder of the fragility and beauty of this endangered species, a true marvel of evolution that hangs precariously in the balance.

Discover more wildlife