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The journal publishes papers on the broad field of experimental zoology, nuclear and chromosome research, and also ultrastructural studies. Indexed in: ISI Master Journal List, Current Contents, Polish Scientific Journals Contents. Impact Factor (2011): 0.657; 5 year IF: 0.673

ISSN 0015-5497 (print) ISSN 1734-9168 (online) Editorial board Instructions to authors Subscription Select volume... 61(1-2) (2013) 60(3-4) (2012) 60(1-2) (2012) 59(3-4) (2011) 59(1-2) (2011) 58(3-4) (2010) 58(1-2) (2010) 57(3-4) (2009) 57(1-2) (2009) 56(3-4) (2008) 56(1-2) (2008) 55(3-4) (2007) 55(1-2) (2007) 54(3-4) (2006) 54(1-2) (2006) Supplement (2005) 53(3-4) (2005) 53(1-2) (2005) 52(3-4) (2004) 52(1-2) (2004) Supplement (2003) 51(3-4) (2003) 51(1-2) (2003) 50(3-4) (2002) 50(1-2) (2002) 49(1-2) (2001) 49(3-4) (2001) 48(1-2) (2000) 48(3-4) (2000) 47(1-2) (1999) 47(3-4) (1999) 46(1-2) (1998) 46(3-4) (1998) 45(1-2) (1997) 45(3-4) (1997) 44(1-2) (1996) 44(3-4) (1996) 43(1-2) (1995) 43(3-4) (1995) 42(1-2) (1994) 42(3-4) (1994) 41(1-2) (1993) 41(3-4) (1993) 40(1-2) (1992) 40(3-4) (1992) 39(1-4) (1991)