Eurasian Otter (Lutra lutra)

1. Miguel Delibes ,et. al 2000. Why the Eurasian otter (Lutra lutra) leaves a pond? An observational test of some predictions on prey depletion.

2. Jordi Ruiz-Olmo and Rosa Marsol 2002. New information on the predation of fish eating birds by the Eurasian otter (Lutra lutra).

3. Fred Slater 2002. Progressive Skinning of Toads (Bufo bufo) by the Eurasian Otter (Lutra lutra).

4. Frédéric Leblanc 2003.Protecting fish farms from predation by the Eurasian otter (Lutra lutra) in the limousin region of central France: first results.

5. Antoni Margalida 2005.Use of small rich patches by Eurasian otter (Lutra lutra) females and cubs during the pre-dispersal period.

6. Jacinto Román 2008.What do otters eat where there is no fish?

7. Pablo Garcia, 2009..Seasonal changes in American Mink (Neovison vison) related to Eurasian Otter (Lutra lutra) presence.

8. Stanislaw Pagacz, et. al 2010. Intensive exploitation of amphibians by Eurasian otter (Lutra lutra) in the Wolosaty stream Southeastern Poland.

9. Luigi Remontiet. al 2011. Scent marking of key food sources in the Eurasian Otter (Lutra lutra).

10. George Gorgadze 2013. Seasonal Diet of the Otter (Lutra lutra) On the Alazani River (Georgia).

Smooth-coated Otter (Lutrogale perspicillata)

1. Molly Badham 1973. Breeding the Indian Smooth Otter at Twycross Zoo.

2. Biswas 1973. On the Domestication of the Otter by Fishermen in Bangladesh.

3. Kruuk 1994. Niche Separation in Three Sympatric Otters –Lutra lutra, Lutrogale perspicillata and Aonyx cinerea in Thailand.

Asian Small-clawed Otter (Aonyx cinereus)

1. A. PUNJABI, et. al 2014.Recent records of Stripe-necked Mongoose Herpestes vitticollis and Asian Small-clawed Otter Aonyx cinereus from the north Western Ghats, India.

Multiple Otter Species

1. Sivasothi 1994. A review of Otters in Malaysia and Singapore.