The bizarre mating behavior of hermaphroditic sea slugs — which involves stabbing penile appendages and hook-like penis spines — may have hidden benefits despite its wear on the body, new research ...

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 ...

An Australian sea slug uses a spike to inject fluid into the head of its mate during intercourse, researchers have found. THERE ARE MANY WEIRD mating practices in the animal kingdom, but researchers ...

Simultaneous hermaphrodites offer the chance to study antagonistic coevolution between the sexes when individuals function in both roles. Traumatic mating by hypodermic insemination has repeatedly ...

Sexual interactions in so-called cross-fertilizingsimultaneous hermaphrodites, such as earthworms, snails, leeches, andsome fishes, have long challenged researchers' understanding of howestablished ...

The ocean is their playground — and fortunately for us, sea creatures put on amazing shows this year that were captured on camera for the world to see. There were the animals readers flipped over, ...

Giant Spanish slugs have been mating with their British counterparts to create a mutant strain of "superslugs". The Spanish molluscs are thought to have arrived in the UK in salads during the summer ...

Sexual interactions in so-called cross-fertilizing simultaneous hermaphrodites, such as earthworms, snails, leeches, and some fishes, have long challenged researchers' understanding of how established ...