Freshwater

3+ day, 34+ min ago   (38+ words) SMH.com.au For a few weeks a year, some people walk the streets fearing being swooped by a magpie. Here are some ways to avoid it. September 10, 2026 — 2:32pm...

3+ day, 4+ hour ago   (380+ words) Texas' Trinity River is already famous for producing some monster gar. However, a recent catch was unusual for a different reason. Angler Sebastian Benitez recently reeled in a rare hybrid between a female alligator gar and a male longnose gar…...

3+ day, 7+ hour ago   (384+ words) With fishing season underway, state departments across the country have issued stern warnings: any northern snakehead caught should be killed immediately. Methods range from decapitation and gutting to sealing the fish in a plastic bag. When asked which is most…...

6+ day, 6+ hour ago   (502+ words) Dear Dr. Universe: Do goldfish need eight to 12 hours of light and 12 to 14 hours of darkness to maintain a healthy circadian rhythm? – Yun-hee, 12, South Korea As a crepuscular cat, I’m mostly awake at dawn and dusk. But goldfish are diurnal…...

6+ day, 8+ hour ago   (388+ words) Against a darkening sky, movement overhead catches our eye. A large bird floats in ever-widening circles on uncertain wings. A juvenile bald is taking a test flight away from its nest. Like a teenager confronting the onset of a growth…...

6+ day, 12+ hour ago   (1102+ words) One note on counting. Total species, species per river mile and species per square mile of drainage give three different winners, and all three are worth knowing. Start with the basin rather than any single river, because the basin figure…...

1+ week, 2+ day ago   (399+ words) An older published maximum of 71 years sits above it, and the Lake Winnebago authors cited that record as the species-level ceiling. The two figures are not equivalent. The 58-year specimen carries radiocarbon validation behind it, while the 71-year record rests…...

1+ week, 5+ day ago   (1000+ words) The Colorado Bureau of Investigation rated only three of its former forensic investigator’s cases as “high-risk” and worth re-testing. The Denver Crime Laboratory dug deeper. At a Cañon City correctional facility, inmates train dogs in basic obedience before adoption, helping…...

2+ week, 9+ hour ago   (93+ words) Birdwatching Trek: Bass Ponds *Register on Signup.com* U.S. Fish and Wildlife Service (.gov) Official websites use.gov Secure.gov websites use HTTPS Join refuge naturalist Craig Mandel for a bird walk to learn about the birds that we find on…...

2+ week, 4+ day ago   (420+ words) A giant freshwater stingray weighing around 300 kg (661 lb) has been recorded in Cambodia’s Mekong River, highlighting just how extraordinary the river’s underwater world can be. The enormous female stingray was caught by fishermen in the Stung Treng region of Cambodia....