Yes, Bears Can Actually Give Birth While Hibernating Bears typically mate in the summer, but the embryo does not become implanted until a female bear has denned. It’s only when her fat reserves have ...

Stewart said she did four embryo transfers using Bear's DNA, which led to two failed cloning attempts before Bear Bear and Honey Bear were born. Never miss a story — sign up for PEOPLE's free ...

Mating season lasts from May through July. As in all bear species, fertilized embryos delay implantation in the female’s uterus. If a sow isn’t vigorous enough to sustain a pregnancy, ...