Horror moment the sea off a popular Costa del Sol holiday resort turns a disgusting brown colour after s huge pipe bursts.

For annulated sea snakes, seeing the wonderful world of color wasn’t always possible ... potential snake mates against the more colorful background in the ocean. [Related: How cats and dogs ...

They found that fish deep-sea fish had expanded a certain gene called rhodopsin which gave them this remarkable vision. Photopigments in the cone cells found in the retina give vertebrates colour ...

Fish living in the deep ocean have evolved highly-sensitive eyes that can see a range of colour hues in the near ... that live more than 200 metres below sea-level. Analysing this DNA, the team ...