海量图书期刊资源，随时随地畅享阅读乐趣
A HARP SEAL × HOODED SEAL HYBRIDKit M. Kovacs; Christian Lydersen; Mike O. Hammill; Bradley N. White; Paul J. Wilson; Sobia Malik · 1997
REVERSED MOLTING PATTERN IN STARVELING GRAY (HALICHOERUS GRYPUS) AND HARP (PHOCA GROENLANDICA) SEAL PUPSChristian Lydersen; Kit M. Kovacs; Mike O. Hammill · 2000