In 2019, Australia lowered a 58-ton concrete greenhouse into the Great Barrier Reef; the 12-metre underwater structure became a living artwork and coral habitatNestled beneath the waves near John Brewer Reef in Australia lies an innovative Coral Greenhouse sculpture crafted from pH-neutral cement, ...
26 Aug, 2026, 08.59 PM IST
In 1992, Congress authorized the removal of 2 dams that had blocked salmon for a century. 24 years later, the Elwha River once again flowed freely from the Olympic Mountains to the seaElwha River Restoration changed one of America’s most remarkable river recovery stories. Two dams once blocked salmon from reaching upstrea...
26 Aug, 2026, 06.30 PM IST
In the 1920s, Arizona’s State Game Department introduced bullfrogs for food and sport; the predators now eat young northern Mexican gartersnakes and move up to 7 milesArizona introduced American bullfrogs a century ago for sport, which now threatens native gartersnakes. These nonnative frogs disrupt food ...
26 Aug, 2026, 01.50 PM IST
In the 1950s, U.S. nuclear tests were conducted at Bikini and Enewetak; decades later, Guam corals preserved carbon-14 spikes linked to tests in 1954, 1956, and 1958Guam’s coral reefs act as natural historians, chronicling chemical footprints of Cold War-era nuclear tests. Distinct radiocarbon spikes fr...
25 Aug, 2026, 04.29 PM IST
Beginning in 1877, Japan imported California rainbow trout for food and sport fishing; escaped fish later competed with native salmonids and disrupted their spawning groundsIn 1877, Japan imported rainbow trout from California for culinary and recreational purposes. However, these fish escaped their aquaculture...
25 Aug, 2026, 03.36 PM IST
In 1970s, silver carp were brought to the US for aquaculture. Now the jumping fish threaten a $20 billion Great Lakes industryInvasive silver carp are rapidly approaching the Great Lakes, raising alarm over potential ecological and economic damage. The recent detec...
24 Aug, 2026, 07.12 PM IST
In 2006, volunteers lowered a stripped Boeing 737 into the Pacific; 20 years later, the jet has become a cold-water artificial reefA retired Boeing 737 now rests on the seafloor off Vancouver Island. This aircraft was transformed into an artificial reef by Canada. The X...
23 Aug, 2026, 01.30 PM IST
In 2024, scientists found that clownfish use white stripes to spot rivals; the fish attacked most when intruders matched their three-stripe patternClownfish are anything but friendly when it comes to defending their homes, showcasing a fierce loyalty to their anemone habitats. They hav...
22 Aug, 2026, 01.10 PM IST
In 1990, Utah officials killed more than 99% of the fish in a 17,000-acre reservoir; years later, it became a top trout fisheryIn 1990, Utah wildlife officials took the bold step of using rotenone to eradicate over ninety-nine percent of the fish biomass in the rese...
21 Aug, 2026, 05.22 PM IST
Why Nagpur authorities are destroying 36,000 kg of fish seized from 11 ponds across the cityA Nagpur crackdown on banned Thai Mangur farming has resulted in the destruction of more than 36 tonnes of fish recovered from 11 ponds in ...
21 Aug, 2026, 03.24 PM IST
In 1995, a Tasmanian fisherman found a dead carp. What followed was a four-decade operation to remove nearly 50,000 European fishA dead carp spotted in Tasmania's Lake Crescent in 1995 triggered a 28-year campaign to eradicate invasive European carp from Lake Crescent...
21 Aug, 2026, 01.48 PM IST
In June 2026, El Niño weakened Pacific trade winds, shutting down nutrient-rich upwelling; satellites then watched phytoplankton decline, threatening anchovies and seabirds as the ocean food chain began to unravelEl Niño has returned to the Pacific Ocean in June 2026, impacting marine ecosystems. Weakened trade winds are reducing nutrient upwelling, ...
20 Aug, 2026, 11.32 PM IST
Earlier this year, Michigan researchers analyzed lake sturgeon records spanning decades. 300 years later, their findings point to fish still living around the Great lakes for nearly 3 centuriesNew research from Michigan researchers suggests that lake sturgeon in the Great Lakes may live far longer than previously believed. The stu...
20 Aug, 2026, 10.59 PM IST
In 1985, the first invasive lionfish spotted off Florida after aquarium release; in three decades, they spread from Gulf of Mexico to the southern CaribbeanThe invasive lionfish, first introduced in the 1980s, has quickly proliferated across the Western Atlantic, extending its reach from Florid...
20 Aug, 2026, 04.35 PM IST
In 2012, PacifiCorp launched a trap-and-haul program to move adult salmon upstream past Merwin Dam. 14 years later, researchers found 2 stages in the system but 1 decisive bottleneck: young salmon failing to find the artificial current downstreamA trap-and-haul program on Washington’s Lewis River helps adult Chinook salmon bypass Merwin Dam by transporting them in trucks to upstream...
20 Aug, 2026, 12.23 AM IST
By 2015, Georgia had added about 200 retired chicken-transport cages to an offshore reef; the steel structures became fish habitatAlong the stunning coast of Georgia, discarded chicken cages have found a new purpose as artificial reefs. These innovative structures crea...
19 Aug, 2026, 02.50 PM IST
In 2011, USGS researchers began studying Lake Erie's fish and seasonal hypoxia across a multi-year project. 15 years later, the findings showed fish crowding areas near 2–3 mg/L oxygen, revealing an unexpected shift at the edges of low-oxygen zonesLake Erie’s seasonal hypoxia is changing where fish gather. For years, scientists watched oxygen levels fall and fish move around the lake....
13 Aug, 2026, 07.02 PM IST