New research shows some barnacles mate via spermcasting

(Phys.org)—A team of Canadian researchers has found that one species of barnacles mate by ejecting sperm into seawater while another catches it – a process known as spermcasting. Prior to this research, scientists had believed all barnacles either mated directly, or inseminated themselves. The team describes their research and results in a paper they've had published in Proceedings of the Royal Society B.

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