The sex life of the female seahorse is being investigated in a research project under way at a sea life centre.
The spotlight is on tropical seahorses at Great Yarmouth Sea-Life Centre as scientists examine whether females are more promiscuous than males.
The seahorses have been fitted with tiny coloured necklaces so researchers can see who is pairing up.
It had been thought seahorses mated for life but early results show the females being more promiscuous.
Seahorses at the centre mate frequently and researchers have enlisted the help of visitors to tell them which coloured tags are pairing up, giving a date and time.
The survey will then be added to eight others taking place across Europe.
Terri Harris, one of the researchers, said: "Early results are showing us that the males stay faithful to one female.
"However the females may have more than one male partner so they are the ones who are more likely to stray."
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