When the Covid-19 pandemic hit in 2020 with associated travel restrictions, Matthew Long thought his students could shift their overseas research projects to instead study the seagrass meadow ecosystem in Waquoit Bay.

Can a single bottle of ocean water contain enough scraps of genetic material for researchers to identify virtually all of the fish, plankton, molluscs, marine mammals and other organisms from that location?

Some corals in the eastern Pacific are adapting to a warmer world by hosting more heat-tolerant algae, according to new research that offers hope for the world’s embattled reefs.

The tropical oceans are home to the most diverse plankton populations on Earth, where they form the base of marine food chains. 

Seabed mining could soon begin in the deep ocean – but the potential impact on animals including whales is unknown, researchers have warned.

The Amazon rainforest has been degraded by a much greater extent than scientists previously believed with more than a third of remaining forest affected by humans, according to a new study.

Yale researchers have found that the ability of fish in temperate and polar ecosystems to move between shallow and deep water triggers species diversification.

Some reefs increase their resilience to elevated temperatures by being built by corals that shuffle algal partners following ocean heatwaves.

Communities of microbes that work together release more carbon dioxide than competitive communities, contributing more to climate change.

Humans are artificially expanding cities’ coastlines by extending industrial ports and creating luxury residential waterfronts.