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Madagascar sucker-footed bat

Myzopoda aurita

Conservation status IUCN: Least concern· LC
Madagascar sucker-footed bat (Myzopoda aurita)
Photograph from Wikimedia Commons · Wikipedia article (it)

Where the name comes from

Myzopoda is “sucking foot”, from the Greek mýzō and poús; aurita is the Latin “long-eared”. The name describes what the first anatomists thought they saw — suckers like those of the American disc-winged bat — and later proved imprecise: the Malagasy discs create no vacuum, they adhere by wetting. Two animals on either side of the Indian Ocean, the same apparent solution and two different physical mechanisms.

Facts

Group
Mammals · Mammalia
Order
Bats
Habitat
Forest and bushland, inside the furled leaves of traveller’s palms
Range
Endemic to eastern Madagascar
Size
5.7–6 cm of body, 25 cm wingspan, 8–10 g
Diet
Insectivore — small moths
Lifespan
Little known

Characteristics

  • 01

    It has adhesive discs at wrists and ankles, but they work by wetting, not suction.

  • 02

    It roosts head up, clinging to the smooth inner surface of leaves.

  • 03

    It is the only living member of a family that once lived in Africa as well.

What sets it apart

Its discs are not suckers: they adhere the way a wet glass adheres to a glass table. It is capillary adhesion, produced by a thin film of glandular secretion between disc and leaf, and it carries the animal’s weight on smooth surfaces where no claw would find purchase. The American disc-winged bats, which live in the same kind of roost on the other side of the world, solved the same problem with true muscular suckers — same leaf, same posture, two different physics.

Next species

Common bent-wing bat

Miniopterus schreibersii