Conservation work around the world has helped the endangered humpback whale's global population recover to about 80,000.

These colorful fish add a lot of personality to the reef, rocks and tide pools. You just have to look closely to spot them.

Hawaii Governor David Ige signed a law that creates a 10-year marine reserve across a three-and-a-half mile stretch of coastline in North Kona.

These marine reptiles are endangered and beloved by scuba divers.

The shore-based census of humpback whales in the Aloha State is conducted three times per year.

Officials suspect the sea turtles drowned in illegal fishing nets.

These baleen whales (*Balaenoptera brydei*) are closely related to blue and humpback whales.

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The Maya knew an awful lot about sharks — including the legendary *C. megalodon* — without ever visiting the ocean.