Orsolya Haarberg / Two Chamois (Rupicapra rupicapra) in snow storm, one with tongue out, testing the air for female ovulation, Gran Paradiso National Park, Alps, Italy, November

Orsolya Haarberg / Alpine ibex (Capra ibex) ram testing the air to sense ovulation in females, flemen response, Gran Paradiso National Park, Alps, Italy, November

Orsolya Haarberg / Alpine ibex (Capra ibex) ram testing the air to sense ovulation in females, flemen response, Gran Paradiso National Park, Alps, Italy, November

Orsolya Haarberg / Alpine ibex (Capra ibex) ram testing the air to sense ovulation in females, flemen response, Gran Paradiso National Park, Alps, Italy, November

Nature Production / Asian Tiger snake (Rhabdophis tigrinus tigrinus), laying eggs, Ibaraki, Japan