Ranges and cold hardiness of two earthworm subspecies (Eisenia nordenskioldi, Lumbricidae, Oligochaeta) D. I. BermanE. N. Meshcheryakova OriginalPaper 07 December 2013 Pages: 719 - 727
Growth and shell morphology of three mytilidae (Bivalvia) species from the Sea of Japan E. E. Vekhova OriginalPaper 07 December 2013 Pages: 728 - 737
Postembryonic development of anurans in ponds littered with metal-containing refuse (simulation experiments) E. A. SevertsovaD. R. Aguillon Gutierrez OriginalPaper 07 December 2013 Pages: 738 - 747
Song structure variability in passerine birds: Random variation or direct informative changes M. I. Goretskaia OriginalPaper 07 December 2013 Pages: 748 - 759
On the growth of incisors in ground squirrels (Spermophilus) during hibernation G. A. KlevezalA. I. Anufriev OriginalPaper 07 December 2013 Pages: 760 - 767
Structure of colonies in the northern mole vole, Ellobius talpinus (Rodentia, Cricetidae) N. G. Evdokimov OriginalPaper 07 December 2013 Pages: 768 - 778
Seropositivity for different pathogens in polar bears (Ursus maritimus) from Barents Sea Islands S. V. NaidenkoE. A. IvanovV. V. Rozhnov OriginalPaper 07 December 2013 Pages: 779 - 782
Observations of the walrus (Odobenus rosmarus) in the Barents, Kara, and Laptev seas in 2010–2012 D. M. GlazovO. V. ShpakV. V. Rozhnov OriginalPaper 07 December 2013 Pages: 783 - 789
Dependence of killer whale (Orcinus orca) acoustic signals on the type of activity and social context O. A. FilatovaM. A. GuzeevE. Hoyt OriginalPaper 07 December 2013 Pages: 790 - 796
Observation of the gray whale (Eschrichtius robustus) in the Laptev Sea O. V. ShpakD. M. KuznetsovaV. V. Rozhnov Short Communications 07 December 2013 Pages: 797 - 800