Mother right whales were captured in a rare video with their bellies up. It could be a sign they need a break.

The homesteading couple behind Gold Shaw Farm captures the intense and moving moment a new calf is born amidst a powerful Vermont snowstorm.

Scientists have long thought humans have a uniquely difficult birth compared with other primates. And it's true that, from an ...

Extraordinary footage captured by Stuart Buy in South Africa's Sabi Sand Game Reserve shows the touching moment a newborn elephant calf takes its first unsteady steps just moments after birth. The ...

Scientists have discovered that marsupial forelimbs (arms) develop much earlier before birth than previously thought, ...

Abstract: In an era of complex systems, dynamic multi-echelon inventory optimization for repairable spares under uncertain demand is vital to ensure operational resilience, minimize downtime, and ...

Read a National Geographic magazine article about animal mating behaviors and get information, facts, and more about sexual ...