Slugs may look like they are fighting in videos seen online, but it is actually an intense mating ritual. Slugs can mate with anyone within their own species, as they have both male and female ...

Courting is as unique to a species as dietary habits or dwelling. Some mating rituals seem almost aggressive, while others are dance-like and graceful. They can even be beautifully intimate, mimicking ...

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 ...

In its native Pacific waters, the sea slug Siphopteron makisig looks tiny and delicate, like a bud of colored glass. But in reality this slug is a mirror-image mating machine, as modeled by the pair ...

Slugs don’t seem like the type of animals capable of duking it out. However, a funny Instagram post by @tiny.sanctuary shows what appears to be a fight between two particularly aggressive slugs. But ...