The Australian government has pledged millions of dollars in extra funding to protect the Great Barrier Reef, but none of it will go to tackling the biggest threat
The slick of oil condensate from a stricken tanker in the East China Sea is a threat to all marine life, not least because it is invisible
Limiting climate change to 1.5 °C instead of 2 °C, even if we overshoot at first and then bring temperatures back down, will ease the rise in sea levels
The record books say that the ocean sunfish is the heaviest bony fish alive, but in fact the specimen in question belongs to a different species
The Pacific Ocean is likely to enter a La Niña state in the next few months, which could mean a more active Atlantic hurricane season next year
Strong currents in the Red Sea are sweeping huge masses of larvae-rich sea water from one reef to the next
The 91 newly found volcanoes lurk beneath the vulnerable West Antarctic ice sheet and could accelerate its demise
Conservationists need to track penguin populations, but tagging hundreds of birds is impractical. A technique borrowed from forensics offers a solution
Vast blooms of jellyfish are becoming increasingly common – perhaps because human-made offshore platforms act as ideal nursery grounds for young jellies
Escarpia laminata lives on the sea floor, where food is plentiful and predators are absent – a perfect environment for longevity