In the marine world, attracting a mate can be really tricky. A new study on three-spined stickleback fish has found that females do not always trust males who emit strong sexual signals.

u00a0Three-spined stickleback is a species of fish in which breeding males develop a red throat in order to attract females. Sticklebacks can breed several times over the course of the summer, but pay a heavy price since few survive for another year.