A new study reveals that the fringe-lipped bat (Trachops cirrhosus)—a small predator from the forests of Panama—uses a hunting strategy strikingly similar to lions. Despite its tiny size, this bat captures large prey with remarkable efficiency, challenging long-held assumptions about predator behavior and energy use.
🦇 Lion-Like Tactics in a Tiny Package
Researchers equipped 20 fringe-lipped bats with miniature biologging “backpacks” that recorded movement and sound. The data showed that these bats don’t chase prey like most small predators. Instead, they use a “hang-and-wait” ambush strategy, relying on acute hearing to detect frog mating calls and other prey sounds.
- Bats remained stationary for 89% of the night, conserving energy.
- Hunting flights were brief—median duration just 8 seconds.
- Success rate was 50%, far higher than lions (14%) or polar bears (2%).
This strategy allows the bats to strike with precision and rest between hunts, much like large carnivores.
🍽️ Big Meals for Small Hunters
The bats often consumed prey nearly their own size, including frogs weighing up to 20 grams. One bat was recorded chewing for 84 minutes, indicating a substantial meal. On average, prey weighed 7% of the bat’s body weight, equivalent to a human eating a 5 kg meal.
Older bats were better at handling large prey, suggesting that hunting skills improve with experience. These bats also remember frog calls for years and learn from observing others.
🔬 Rethinking Predator Ecology
This discovery challenges the traditional view that small predators must constantly hunt small, abundant prey due to their high metabolic rates. Instead, fringe-lipped bats show that precision, patience, and sensory adaptation can allow even tiny animals to hunt large, energy-rich prey efficiently.
Lead author Leonie Baier described them as “big predators trapped in tiny bodies,” while senior author Laura Stidsholt emphasized how biologging allowed researchers to “experience the forest through the bats’ ears.”
📚 Source
This article is based on the original report from Phys.org and the peer-reviewed study published in Current Biology (DOI: 10.1016/j.cub.2025.10.023).
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