For example, they examined how bats echolocate in groups. In the laboratory, scientists observed that individual bats in a small group each echolocated at a slightly different frequency, which in ...

owner of 2,000 cichlids kept in her custom “fish house,” and founder of “Babes in the Cichlid Hobby,” a group representing the tiny minority of women collectors, “but my past experience with it was ...

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet ...

The cichlid group in Africa’s great lakes is famous for its ability to adapt to different food sources. Some species nibble algae, some snap at small aquatic creatures, and others snack on whatever ...