FEMALES SCORNED When males are in short supply, females can become fierce competitors. Female house sparrows and great reed warblers, whose males often take two mates, may try to smash a rival’s eggs.

I've been studying animal behavior for many decades and I've long been interested in possible sources of bias in my field and others. I've been concerned for a number of reasons, including: our ...

I've been studying various aspects of animal behavior, especially in mammals, for many decades and have always felt uneasy about how cultural values have limited our true understanding of the dynamics ...

Every year, researchers and people out in nature capture some aspect of animal behavior that’s unusual or unexpected in some way, changing how we understand the natural world. For the first time, ...