Delayed implantation in the elephant seal. Home> Scientific research> Publications> Biology> Delayed implantation in the elephant seal. Summary Authors:Gibbney L. Published in: 1953 Category 1: Peer-reviewed literature Program area: Biology Gibbney L. (1953) Delayed implantation in the elephant seal, Nature 172. 590-591; This content was last updated 8 months ago on 20 February 2026.