Author : Thomas Henry Manning
Publisher :
Page : 12 pages
File Size : 22,32 MB
Release : 1973
Category :
ISBN :
"Skull criteria are given for aging of Polar Bears up to six years, by which time they are considered fully grown. Most characters develop earlier in females than in males. Sexual maturity is probably reached by males early in their fourth year, and by females possibly early in their third. Weights of 13 bacula are given"--Abstract.
Author : T. H. (Thomas Henry) Manning
Publisher : Canadian Wildlife Service
Page : 12 pages
File Size : 39,96 MB
Release : 1973
Category : Animals
ISBN :
Author :
Publisher :
Page : 130 pages
File Size : 11,12 MB
Release : 1967
Category : Age determination (Zoology)
ISBN :
Author : Clifford J. Martinka
Publisher :
Page : 390 pages
File Size : 32,45 MB
Release : 1980
Category : Bears
ISBN :
Author : C. Richard Harington
Publisher :
Page : 0 pages
File Size : 23,53 MB
Release : 1968
Category :
ISBN :
Author : IUCN/SSC Polar Bear Specialist Group. Working Meeting Oslo, Norway)
Publisher : IUCN
Page : 172 pages
File Size : 17,34 MB
Release : 1998
Category : Polar bear
ISBN : 9782831704593
Author : U.S. Fish and Wildlife Service
Publisher :
Page : 1020 pages
File Size : 27,49 MB
Release : 1954
Category : Animals
ISBN :
Author : U.S. Fish and Wildlife Service
Publisher :
Page : 100 pages
File Size : 30,13 MB
Release : 1977
Category : Marine mammals
ISBN :
Author : United States. National Park Service
Publisher :
Page : 422 pages
File Size : 13,16 MB
Release : 1980
Category :
ISBN :
Author : United States. Congress. House. Committee on Merchant Marine and Fisheries. Subcommittee on Fisheries and Wildlife Conservation and the Environment
Publisher :
Page : 564 pages
File Size : 49,9 MB
Release : 1974
Category : Aquatic mammals
ISBN :
