Ever wondered how hagfish digest their food and their role in the evolution of vertebrates? These creatures have an unusual digestive process. Their gut fluid is acidified like that of many invertebrates. This process is carried out by a mechanism called the vesicular-type H+-ATPase, or VHA for sho
You've probably heard about tiny nanoparticles being used to fight bacteria. But what happens when these nanoparticles, like zinc oxide (ZnO) and titanium dioxide (TiO₂), end up in our rivers and lakes? Scientists wanted to find out how they might affect rainbow trout. They exposed the fish to these
Imagine enjoying a nice meal of fish from Iseo Lake in northern Italy. That's what one person did, but a month later, they found an unexpected guest in their stool: a worm segment. This wasn't just any worm; it was a part of a tapeworm from the Dibothriocephalus genus. How did this happen? The fish
Fish populations in England's rivers have been on a rollercoaster ride over the past four decades. Once struggling due to water pollution and changes in land use, these aquatic creatures have shown remarkable improvements. Scientists looked at data from 16, 124 surveys at 1180 sites across England,
Politics can be tricky. For Donald Trump, it's even trickier. He's facing resistance from his own party, the Republicans, when it comes to raising the nation's debt ceiling. This ceiling is like a big red flag that says, 'Stop borrowing money! ' and Trump wants to raise it. But he's not alone in thi
You know how some sharks are having a tough time because people fish too much? One of these is the shortfin mako shark, which is in trouble all over the world. Scientists wanted to know where these sharks have their babies and where they hang out so they can help protect them. They looked at data fr
On Sunday, the US Coast Guard restarted their search for a father and son who didn’t return from a fishing trip off the coast of Maine. Chester and Aaron Barret, fishing aboard their 34-foot boat named “Sudden Impact, ” headed out from Cobscook Bay State Park early Saturday morning and never came ba
Working on a fish farm in Norway can be dangerous. Fish farming involves high-energy environments with many risks. To keep workers safe, it's crucial to understand past accidents and learn from them. This study aimed to boost knowledge about what makes Norwegian fish farming safer, based on records
You know those tiny pieces of plastic that pollute our oceans and rivers? They're not just a problem for the environment, but also for the creatures living in it, like zebrafish. We found out that when these little plastic bits, called nanoplastics, are very small (about 20 nanometers), they can do
Brittle bone disorders, or FBDs, can cause people to break bones easily. Scientists are trying to figure out which genes are responsible for these conditions. One way they are doing this is by studying zebrafish. These tiny fish share many bone-building genes with humans. Researchers used a tool cal
