Genesis Fertility Clinic Blog
searching: “embryonic diapause”
August 31, 2011
Bear embryos
While out on a run last weekend in Whistler I nearly ran into a black bear mother and two of her cubs. Yikes. I decided to read about black bears – how to avoid being eaten by them, mostly. In my reading I came across some interesting information on bear reproduction.
Bears copulate in the spring after hibernation. Like in other mammals, sperm fertilize an egg forming an embryo. The embryo develops until the blastocyst stage of development and then becomes dormant.