lunedì 2 novembre 2015

NYT Science: Bird Eggs Are Fertilized by More Than One Sperm

Bird Eggs Are Fertilized by More Than One Sperm
By SINDYA N. BHANOO

Penetration by multiple sperm may be unusual among animals, but it is somehow crucial to the development of the bird embryo, a new study finds.

Published: November 3, 2015 at 06:00AM

via NYT Science http://ift.tt/1P5VtYm