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 ...

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 ...

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 ...