Five little penguins flee from a seal, flying through the water, and find themselves in an innocent game of tag.

Twelve-year-old Suzy Swanson wades through her intense grief over the loss of her best friend by investigating the rare jellyfish she is convinced was responsible for her friend's death.

Their magic tree house takes Jack and Annie deep into the sea, where they meet up with dolphins, sharks, and octopi as they search for the answer to an ancient riddle.

National Geographic pairs gripping and gruesome stories of shark attacks with cutting edge research to illuminate a fascinating underwater world that few truly understand. Sharks are the world's most fascinating predators-capable of detecting a single drop of blood in 25 million drops of ocean and sensing electricity emitted by their prey. This eBook short takes readers deep into the realm of the very latest shark science, including new insights into...

Contains facts about sixteen different types of sharks, comparing such aspects as their sizes and abilities, and what the outcome would be if they were to fight each other.

"While on assignment in Greece, journalist James Nestor witnessed something that confounded him: a man diving 300 feet below the ocean's surface on a single breath of air and returning four minutes later, unharmed and smiling. This man was a freediver, and his amphibious abilities inspired Nestor to seek out the secrets of this little-known discipline. In Deep, Nestor embeds with a gang of extreme athletes and renegade researchers who are transforming...

A marine biology student reporting to his summer job on an island off Portugal finds himself at the center of a power struggle between his boss and another group of Americans.

Endangered animals need people's help to survive. Read about how scientists are helping loggerhead turtles survive.

Learn about the habits and habitat of the smallest and most endangered marine mammal.