Sperm Storage Tubules (SSTs) allow female ducks to store sperm for extended periods, decoupling insemination from fertilization and enabling delayed fertilization. Female ducks have more control over ...

Male Mandarin ducks display vibrant coloration to attract mates. Mandarin ducks have not become a problematic invasive species in North America, despite over 50 years of population establishment. The ...

Humans aren't the only ones who grieve after a devastating loss. Though we may forget how deeply pets can feel, they, too, know the ache of heartbreak—especially when losing their partner. Greens may ...

This is so heartbreaking. People online were so emotional over the story of a duck who lost it all and is trying to heal. The animal was hit by a car and lost his mate in the process. He was also left ...