Greenland sharks are thought to have lifespans that can reach 400 years. Building upon previous work, University of Tokyo-led ...

National Oceanic and Atmospheric Administration (NOAA) researchers have unpicked some of the mysteries surrounding the biology and life cycle of the rare and elusive sleeper shark. Pacific sleeper ...

Though Greenland sharks generally live in icy waters, one was recently caught in the Caribbean. A long-term study finds that moon cycles and menstrual cycles align at certain times of women’s lives, ...