header0gallery

arrow0galleryM

 
 

 Piedras Blancas 

 Dec. 26, 2006 

menu : site index

Piedras Blancas elephant seal rookery (Dec. 26, 2006)

 
 

UPDATED: 2007-01-12

Females come into season and mate about 24 days after giving birth. The fertilized egg does not implant in the wall of her uterus for about four months, a rare phenomenon called 'delayed implantation'. The hypothesis is that the female is so weak after nursing and fasting that she doesn't have enough energy to nourish the egg. Since the seals' gestation period is seven months, this delay means that the young will be born after the female reaches her breeding ground the following year. The pups could not survive if born at sea.  
 

WEBSITE  EDITOR:
Krešimir J. Adamić

  arrow0galleryM