Nature often gets praised for its perfect designs. But what happens when things don't go as planned? Fig wasps show us that evolution isn't always perfect. These tiny insects have a tricky job. They need to balance the number of males and females they produce. But sometimes, they get it wrong. Why does this happen? Fig wasps live in a complex world. They don't live ...

Birds in zoos and wildlife parks are often the last hope for species on the brink of disappearing forever. These places are crucial for saving birds from extinction. But there is a problem that needs attention. The number of male and female birds in these places is often not equal. This imbalance can hurt the efforts to save these species. The success of these progra...

Ever wondered why some bird moms have more boys or girls? It all comes down to their quality and the environment. Carolina wrens, which are loyal to one mate, face this dilemma. If a mom is in good shape, she might have bigger sons who can fight for food. But if she's really high-quality, she might have more daughters instead. This is because daughters can provide be...