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How stingless bees defend their honey without a single stinger

With no stingers to repel intruders, over 600 species of bees across the tropics have developed ingenious alternatives. From chemical barriers to specialized bouncers, these tiny architects use resin, mandibles, and even hair-tangling tactics to protect their precious liquid gold from predators.

While the common honeybee (genus Apis) relies on a stinger for defense, stingless bees, or meliponines, utilize a more complex toolkit. In the state of Oaxaca, Mexico, beekeeper Emilio Pérez maintains several species, including Melipona beecheii and Scaptotrigona mexicana, which demonstrate these varied survival strategies. Because they lack the ability to sting, these bees have evolved to protect their larvae and honey stores from mammals and insects through physical and chemical means.

One particularly fascinating method is used by the Nannotrigona perilampoides. Every night, these small black bees with green eyes construct a barricade at their nest entrance using cerumen—a substance created by mixing beeswax with plant resins. This resin-heavy barrier serves a dual purpose: it physically blocks entry and uses scent and stickiness to repel ants. When physical barriers fail, the bees deploy active defenses, including guarding the entrance, biting enemies with their mandibles, and even entangling intruders in their limbs or coating them in resin.

The value of this honey extends beyond its sweetness. In parts of Asia and Latin America, it is used to treat ailments like sore throats. Like honey produced by the Western honeybee (Apis mellifera), stingless bee honey contains hydrogen peroxide, providing antimicrobial benefits. Entomologist David Roubik, formerly of the Smithsonian Tropical Research Institute, notes that the honey may also possess antifungal, antibacterial, and anti-inflammatory properties. However, he cautions that these medicinal qualities are not universal; the specific chemical profile depends heavily on the particular flowers visited and the resins collected by the colony.

Source: Stingless Bees Guard Tasty Honey With Barricades, Bouncers and Bites | Deep Look

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