1. Why do animals hybridize?

   • Pamela M. Willis

   Review 10 March 2013 Pages: 127 - 134

2. Repeatable nest defense behavior in a wild population of Eastern bluebirds (Sialia sialis) as evidence of personality

   • Jennifer L. Burtka
   • Jennifer L. Grindstaff

   Original Paper 22 January 2013 Pages: 135 - 146

   

3. Aspects of breeding biology of chital (Axis axis) and sambar (Rusa unicolor) in the Western Ghats

   • Tharmalingam Ramesh
   • Riddhika Kalle
   • Colleen T. Downs

   Original Paper 20 March 2013 Pages: 147 - 155

   

4. The use of faecal markers for the delimitation of the European rabbit’s social territories (Oryctolagus cuniculus L.)

   • Leire Ruiz-Aizpurua
   • Aimara Planillo
   • Francisco S. Tortosa

   Original Paper 12 April 2013 Pages: 157 - 162

   

5. Predation selects for low resting metabolic rate and consistent individual differences in anti-predator behavior in a beetle

   • Indrikis Krams
   • Inese Kivleniece
   • Marika Mänd

   Original Paper 30 April 2013 Pages: 163 - 172

   

6. Locomotor performance of sand lizards (Lacerta agilis): effects of predatory pressure and parasite load

   • Anna Ekner-Grzyb
   • Zofia Sajkowska
   • Piotr Tryjanowski

   Original Paper Open access 12 May 2013 Pages: 173 - 179

   

7. The effect of pair bonding in Cabrera vole’s scent marking

   • Luis Alexandre Piteira Gomes
   • Pedro Miguel Pedreirinho Salgado
   • António Paulo Pereira Mira

   Short Communication 22 May 2013 Pages: 181 - 188

   

8. Female mate choice is not affected by mate condition in a fish with male care

   • Josefin Sundin
   • Gry Sagebakken
   • Charlotta Kvarnemo

   Short Communication 28 May 2013 Pages: 189 - 194