It shows an octopus hitching a ride on a shark, somewhere in New Zealand. And it also has researchers perplexed. Check it out ...

Children are always asking "Why?" As they experience things for the first time, it's natural to want to find out more. But as ...

Carla Mascarenhas is the NSW correspondent covering breaking news, state politics and investigations. She is based in Sydney.

A “serendipitous” discovery offers new insights into how ecosystems can thrive beneath floating sections of the Antarctic ice ...

Howard Rosenstein With Forewords by Sylvia Earle and David Doubilet Experience the Red Sea’s golden age of diving through the ...