Reakirt's blue butterflies were moving among the flower heads of white clover in my lawn. I presumed that they were nectaring, but I watched closely and discovered that they were ovipositing. They ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

Nature abounds with examples of mutualistic relationships. Think of bees pollinating flowers whose nectar nourishes the bees. Each species benefits the other, and together their chances of survival ...

Organisms both cooperate and compete in ecosystems. When they have close and long-term interactions, their relationship is known as symbiosis. In symbiosis, at least one member of the pair benefits ...

Species have strong indirect effects on others, and predicting these effects is a central challenge in ecology. Prey species sharing an enemy (predator or parasitoid) can be linked by apparent ...

Reproduction for a female fig wasp can be a nightmarish process. When she is ready to lay her eggs, she leaves the fig in which she was born and became pregnant and searches for another. After she ...