Leopard Slugs Mating

Picture series by Martina Eleveld.

Leopard slug (Limax maximus)
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The mating of leopard slugs begins, when two of them happen to meet and start to follow each other to an elevated location.

Common slug (Arion vulgaris) attacks a passing leopard slug
(Limax maximus). Picture: Martina Eleveld.
The rear slug pursues its mate following its slime trail. Should it be disturbed in this, for example by another slug, the pursuit is stopped.

This Martina Eleveld was able to observe when a common or Lusitanian slug (Arion vulgaris) showed up and started attacking the rear Limax during pursuit. Consequently that slug lost contact to its mate and mating did not take place.