Our articles editor receives regular story pitches for his father. This year he decided to pursue one—and it is about cave ...

This year’s winning images include a curious leopard seal, a swarm of jellyfish, and a very grumpy looking Japanese warbonnet ...

We found the best last-minute Father’s Day gift ideas that'll get to Dad by June 15—and they're all thoughtful.

Your simple guide to the dozens of national and international environmental awareness days, weeks, and months.