This location, far from land and typically unexplored by humans, revealed one of the ocean’s most elusive predators: the Pacific Sleeper Shark (Somniosus pacificus). Captured on video by the ...

Greenland sharks are thought to have lifespans that can reach 400 years. University of Tokyo-led researchers have now sequenced the first chromosome-level genome of the Greenland shark (Somniosus ...