 The common name " marine toad " and the scientific name Rhinella marina suggest a link to marine life , but the adult cane toad is entirely terrestrial , only venturing to fresh water to breed . However , laboratory experiments suggest that tadpoles can tolerate salt concentrations equivalent to 15 % of seawater ( ~ 5 @.@ 4 ‰ ) , and recent field observations found living tadpoles and toadlets at salinities of 27 @.@ 5 ‰ on Coiba Island , Panama . The cane toad inhabits open grassland and woodland , and has displayed a " distinct preference " for areas modified by humans , such as gardens and drainage ditches . In their native habitats , the toads can be found in subtropical forests , although dense foliage tends to limit their dispersal . 
