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Ecosystems

Like flyways for birds, we need to map swimways for fish

Mapping fish migration routes and identifying threats is crucial to protecting freshwater species and their habitats, ecologists argue.

Animals

Cricket frogs belly flop their way across water

Cricket frogs were once thought to hop on the water’s surface. They actually leap in and out of the water in a form of locomotion called porpoising.

Earth

Ghostly white northern lights present new auroral mystery

These mysterious whitish-gray glows in the northern lights might be cousins of the mauve light streak known as STEVE.

Astronomy

A cosmic ‘Platypus’ might link two astronomical mysteries

A flash of light called the Platypus has hallmarks of a mid-sized black hole shredding a star and a type of burst thought to be a stellar explosion.