There are about 200 documented species of jellyfish pulsing their way through the world's waters. Most range from the size of your belly button to the size of a car tire.

Seen up close, each polyp has a tube-like body and an opening ringed with dozens of “transparent” tentacles. These ...

Among the myriad creatures that populate our ocean, some stand out as having an outsized impact on the marine ...

Arctic daily sea ice extent continued to hover near record daily lows in January, with the ice edge well northward of its long-term average position in most areas. In contrast to the cold conditions ...