Scientists say they have discovered the world's largest coral — measuring longer than a blue whale — on an expedition in Solomon Islands.

A team of scientists has discovered the world’s largest known coral in the waters off the Solomon Islands, a massive and vibrant organism that can be seen from space. Measuring 183 metres (600 feet) in circumference, this gigantic coral, a species known as Pavona clavus, is estimated to be between 300 and 500 years old.

The largest coral ever recorded has been found by scientists in the southwest Pacific Ocean. The mega coral - which is a collection of many connected, tiny creatures that together form one organism rather than a reef - could be more than 300 years old. It is bigger than a blue whale, the team say.