A new DNA analysis of coralline algae has revealed a wealth of different species

New research reveals a dramatic rebalancing of young corals from tropical to subtropical waters during the last 40 years

Mechanisms for maintaining stable symbiosis in coral reefs are poorly understood

Researchers trace back the origin of this group to a small benthic shark from the Middle Jurassic 

About 70 percent of shark bites are caused by unidentified species, and more precise data on which species are involved could improve bite mitigation strategies

With limited resources to monitor these often-unpredictable blooms, water managers are turning to new technologies from NASA and its partners to detect and keep track of potential hazards

Named Olea hensoni, the slug belongs to the sacoglossans, a group of more than 300 species that are such enthusiastic eaters of plants that many of them turn green

The decline in oxygen in both ocean and coastal waters could pose a new set of threats to marine life

For ocean species to survive climate change, large populations needed

The fossil is the first known record of an ammonite—a distant relative of modern squid and octopuses—found in amber