Lobsters form social hierarchies reflected by serotonin levels

the verdict

SUPPORTED

the evidence backs this

Recorded sources

3 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Crustacean studies consistently show that close aquatic relatives of lobsters, such as crayfish, form social hierarchies whose aggressive behaviors and neural responses are modulated by serotonin.

The analysis

The retrieved papers examine decapod crustaceans (specifically crayfish) and confirm the well-established neurobiological link between serotonin, aggression, and social dominance hierarchies in these animals. While lobsters specifically are not the sole focus of every paper, the broader crustacean literature strongly supports the physiological link described in the claim.

Evidence for · 3

6. Social dominance and serotonin receptor genes in crayfish.

Recorded source metadata

Donald H Edwards, Nadja Spitzer. 6. Social dominance and serotonin receptor genes in crayfish.. 2006. https://doi.org/10.1016/S0070-2153(06)74006-6

Discusses how social interactions and dominance hierarchies in crustaceans like crayfish lead to neural circuit changes modulated by serotonin.

Source citation format

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More for · 2

Immunocytochemical mapping and quantification of expression of a putative type 1 serotonin receptor in the crayfish nervous system.

Recorded source metadata

Nadja Spitzer, Brian L Antonsen, Donald H Edwards. Immunocytochemical mapping and quantification of expression of a putative type 1 serotonin receptor in the crayfish nervous system.. 2005. https://doi.org/10.1002/cne.20456

Examines serotonin receptor localization and its involvement in the crustacean nervous system related to social status.

Source citation format

Crustacean hyperglycemic hormone (cHH) as a modulator of aggression in crustacean decapods.

Recorded source metadata

Laura Aquiloni, Piero G Giulianini, Alessandro Mosco, Corrado Guarnaccia, Enrico Ferrero, Francesca Gherardi. Crustacean hyperglycemic hormone (cHH) as a modulator of aggression in crustacean decapods.. 2012. https://doi.org/10.1371/journal.pone.0050047

Identifies serotonin as a key biogenic amine known to play a crucial role in controlling aggression and social dominance in crustaceans.

Source citation format

The paper trail · every fact has a biography

first checked01 Aug 2026

judged → SUPPORTED · 7501 Aug 2026

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