This fish has very vivid nuptial coloration, which it uses to attract females.

The vaquita is an endangered species and one of the rarest marine mammals in the world.

The Amazon River dolphin is known for its beautiful pink body.

The Yangtze River dolphin, or baiji, is an endangered species that needs protection.

The British Indian Ocean Territory is a region managed by the UK.

The mayfly was spreading its wings on a leaf floating on the water surface.

That old house has a creepy atmosphere.

Quantum chromodynamics is a part of particle physics that describes strong interactions.

His hair was jet-black, and it was very beautiful.

He participated in the parade while waving the tricolour.