We associate nests with shelter, warmth, and a safe retreat—and usually picture a bird's nest made out of twigs, grass and feathers. Yet many other animals take advantage of such refuges, with nests ...

Cichlids build nests from abandoned snail shells. A new study shows that while this behavior is instinctive, the fish become increasingly skilled at it with practice. We associate nests with shelter, ...

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 ...

• Nest-building in fish: Shell-dwelling cichlids build nests from empty snail shells, using them for shelter and to raise their young. • Stereotypical behavioral sequence: The fish follow a set ...