"earths-oceans"

The reason Earth’s oceans may have looked different in the ancient past is to do with their chemistry and the evolution of photosynthesis

Whales live in waters over 1,000 metres deep and are social, forming cohesive groups that in some cases may number hundreds of animals

Since 1984, when satellite record-keeping of ocean temperatures started, every year has been warmer than the previous one

Sharks as a species never recovered from this, said Earth scientists from Yale University and the College of the Atlantic.