Traumatic mating may offer fitness benefits for female sea slugs
Female sea slugs mate more frequently than required to produce offspring, despite the highly traumatic and biologically costly nature of their copulation, as reported Aug. 22 in the open access journal PLOS ONE. The authors of the study, led by Rolanda Lange of the University of Tuebingen in Germany, investigated the mating behavior of a simultaneously hermaphroditic species of sea slug that mates via an extravagant ritual that involves a syringe-like penile appendage that stabs the partner to inject prostate fluids and sperm.
Surprisingly, the researchers found that the sea slugs mate more frequently than minimally required for offspring production and that both elevated and reduced mating rates are detrimental to female fitness, suggesting that there may be some additional, indirect benefits to this traumatic mating beyond reproduction.
Source: Public Library of Science
Other sources
- Rough sea-slug sex may have benefitsfrom MSNBC: ScienceThu, 23 Aug 2012, 1:00:30 UTC
- Traumatic mating may offer fitness benefits for female sea slugsfrom Science DailyThu, 23 Aug 2012, 0:00:29 UTC
- Rough Sea-Slug Sex May Have Benefitsfrom Live ScienceThu, 23 Aug 2012, 0:00:19 UTC
- Traumatic mating may offer fitness benefits for female sea slugsfrom PhysorgWed, 22 Aug 2012, 21:31:22 UTC