Cosmic jellyfish aside, jellyfish are not an animal that you would expect to encounter in space too much. But at one point in the 1990s, 60,000 jellyfish spent time in space aboard the European Space ...

Many insects live in fresh water, or close to the sea in salt marsh and beach habitats. There are also several species of water striders in the genus Halobates, which live on the ocean’s surface, far ...

Scientists have uncovered new clues about some of Earth’s earliest fish, shedding light on the ancient origins of vertebrates ...