Skinning toads is innate behaviour in otter (Lutra lutra) cubs

Intensive Exploitation of Amphibians by Eurasian Otter (Lutra lutra) in the Wołosaty Stream, Southeastern Poland

(2012) Stanisław Pagacz et al.   ANNALES ZOOLOGICI FENNICI

Sex-biased Predation on Newts of the Genus Taricha by a Novel Predator and its Relationship with Tetrodotoxin Toxicity

(2011) Amber N. Stokes et al.   AMERICAN MIDLAND NATURALIST

Behavioural defences of anurans: an overview

(2011) L.F. Toledo et al.   ETHOLOGY ECOLOGY & EVOLUTION

Features of the predation of the Eurasian otter upon toads in north-western Spain

(2010) Cesar Ayres et al.   MAMMALIAN BIOLOGY

What do otters eat where there is no fish?

(2010) Jacinto Román   MAMMALIAN BIOLOGY

Trophic flexibility of the otter (Lutra lutra) in southern Italy

(2007) Luigi Remonti et al.   MAMMALIAN BIOLOGY