Fig. 1: Map (a) showing the collection locations for cane toads (Rhinella marina ) from the range-core (Mareeba, QLD) and invasion-front (Halls Creek, WA) that were then bred and their offspring raised in a common garden experiment in Middle Point, NT. Grey shading depicts the approximate cane toad distribution in 2019. Pictures show a cane toad (b) that is being swabbed to remove skin secretions, and the lungworm parasite Rhabdias pseudosphaerocephala (c) located within the toads’ lung (red arrow indicates location).