
The secret of how Greenland sharks can live cancer-free for 400 years
A Greenland shark photographed near the seabed dotted zebra/Alamy A genomic study may have revealed how Greenland sharks live for centuries and yet rarely get cancer. These sharks (Somniosus microcephalus) are slow-moving dwellers of the deep that can reach more than 6 metres long and weigh over a tonne. We know little about their lives…