Rhett Krawitt in his home’s backyard in Corte Madera, Calif., on July 30, 2025. Rhett survived leukemia as a 6-year-old, and ...

A routine stop at a local bait store turned wild when a mantis shrimp—nicknamed the “alien of the ocean”—decided to fight ...

A new study shows sharks and skates interact with toys in aquariums, suggesting curiosity, personality, and surprising intelligence.