If we want to see more clearly in the dark, we shine a light - but we aren't the only species that does that. Some fish use ...

Wild dolphins use sea sponges as tools to hunt safely, revealing how animal culture survives despite hidden sensory costs.

'They often do repetitive leaps for fun or communication within the dolphin herd,' an expert said.

Many organisms leverage showy colors for attracting mates. Because color is a property of light (determined by its wavelength ...