Research into their behavior in their natural habitats continues to reveal big surprises," explains Daniel Haag-Wackernagel from the University of Basel. "Concerning their mental capacity, fish are for the most part greatly underestimated. The researchers have also discovered another, related fish species (Scolopsis bilineatus) that demonstrates the same kind of mobbing behavior. Not only do the mobbers know the location of their predator's habitat, allowing them to avoid it in future, but they have also made the worm's location visible to all other fishes in the area.
The researchers believe this behavior can be explained by the increased chances of survival that come with discovering a Bobbit's burrow, especially since the worms tend to remain in a single location. Once the predator has been detected and located, its chances of carrying out further ambushes are ruined. Members of the same species who catch sight of this behavior will join in, blasting the ambusher with a battery of water jets until it is forced to retreat into its burrow. In the case of the Scolopsis, the fish swims to the entrance of the worm's burrow, positions itself nearly vertically face-down above it, and blows sharp jets of water in the Bobbit's direction. If a Scolopsis discovers a Bobbit worm or observes a fellow species member being caught, it initiates a behavior known in biology as "mobbing," in which otherwise defenseless prey animals attack their predators. These annelid predators live beneath the sandy ocean floors of the Indo-Pacific and can reach up to three meters in length.įor the first time, biologists Jose Lachat and Daniel Haag-Wackernagel from the University of Basel's Department of Biomedicine have been able to observe how Scolopsis affinis fish from the Lembeh Strait in the Indo-Pacific take up arms against the Bobbit worm. Jiba, a tiger in Shinmai Fukei Kiruko-san. Joe le Tigre, a tiger in Mic Delinx and Christian Godard's La Jungle en Folie. Hobbes, an anthropomorphic stuffed tiger and best friend of Calvin in the comic strip Calvin and Hobbes. Any fish that strays too close succumbs to the lightning-quick grasp of the Bobbit's claws and is dragged down into its burrow. Herrmann, lion of Jimmy van Doren in Stephen Desberg and Daniel Desorgher 's Jimmy van Doren. The annelid buries itself in the sand up to its head and lies in wait for its prey, luring it in with worm-shaped tentacles. The Bobbit worm (Eunice aphroditois) ambushes its prey using a hunting technique based on outstanding camouflage and the element of surprise.
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