These reefs are living, breathing snapshots of a watery world that you can peek into: refreshing oases where the noise of the land falls away; in its place, an intricate and utterly at-ease slice of life that you're lucky enough to witness.
When light shines through water, colors with longer wavelengths are absorbed by the water, with the longest wavelengths absorbed first. Blue and violet have the shortest wavelengths of visible light, so they are able to penetrate the deepest.
During major floods, thousands of tiny fish convene at Luvilombo Falls in the upper Congo River Basin to undertake a peculiar vertical migration, described for the first time today in Scientific Reports.
"There are not very many conservation issues that I'm aware of where industry and conservationists and consumers and the fishermen and the resource users all want the same thing. Every stakeholder wants less bycatch."
The government said the plans would increase the number of England's official bathing sites to 464. An official bathing spot on the Thames in London would mark a "vast transformation" in water quality in the river which was declared biologically dead in the 1950s due to pollution, officials said. Water minister Emma Hardy said rivers and beaches were "at the heart of so many communities, where people come together, families make memories and swimmers of all ages feel the benefits of being outdoors safely".
Archaeologists have fought the tides to save a 17th-century shipwreck from a popular nudist beach in Dorset. The remains are believed to be part of the Swash Channel Wreck, a Dutch merchant ship called The Fame of Hoorn that ran aground while approaching Poole Harbour in 1631. The wreck was found on Dorset's Studland Beach at the end of January when Storm Chandra washed away the sand that had kept it hidden for almost 400 years.
To capture the biological impact of this extreme environment, I used a comprehensive suite of sensors and biomarker analyses. I wore a wireless electroencephalograph (EEG) system to monitor brain activity, sleep stages and neural signatures of stress and adaptation; the Oura Ring to continuously track sleep patterns, heart-rate variability and circadian-rhythm shifts; and the glucose monitor to follow metabolic responses in real time.
Sydneysiders are ingrained with surfing and beach activities as part of their life and it does feel like a piece of you gets stripped away when something like this happens, says lifelong Sydney surfer Matt Chojnacki. After three attacks in quick succession, the big wave surfer and coach decided to leave the city to find what he hoped would be less risky waves to the north.
We've documented sightings of glass squids to better understand the remarkable transformations they undergo from hatchlings to adults. This new observation, captured in ultra high-resolution 4K, allowed us to zoom in on a juvenile likely no bigger than a baby carrot and reveal more details than we have been able to see before.
In this photo, I'm preparing drifting buoys for deployment. This was my main responsibility aboard the RV Falkor (too), during a 27-day research expedition in October 2025 exploring the Malvinas Current, an ocean current that runs alongside Argentina. The expedition included biologists, geologists and physical oceanographers such as myself; I'm a PhD candidate at the Sea and Atmosphere Research Center (CIMA) in Buenos Aires, Argentina.