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2 bull sharks swam up Mississippi River to St. Louis, study finds By Skyler Rivera 2 bull sharks swam up Mississippi River The researchers confirmed those two sightings but besides them, the sighting record in the United States was littered with incomplete reports. Two bull sharks, which are native to the Gulf of Mexico, made their way up to St. Louis by swimming up the Mississippi River separately in 1937 and 1995, a recent study confirmed. In the study, published in the Marine and Fishery Sciences, Cincinnati Museum Center paleontologist Ryan Shell and Nicholas Gardner, a librarian at WVU P...

ALTON — Researchers have confirmed at least two bull shark sightings in the Mississippi River over the last 100 years. In both cases, bull sharks managed to swim upstream past St. Louis — more than 1,160 river miles from the Gulf of Mexico where they are normally found — according to paleontologist Dr. Ryan Shell and WVU Potomac State College librarian Nick Gardner. According to the two, bull sharks have been caught in the area at least twice: once in 1937 and again in 1995. They are one of the few shark species known to swim into freshwater and have been known to travel substa...

Last ice-covered parts of summertime Arctic Ocean vulnerable to climate change IMAGE: The study looked at the Wandel Sea north of Greenland, which is inside what's known as the "Last Ice Area " of the Arctic Ocean. Image:  Schweiger et al./Communications Earth & Environment In a rapidly changing Arctic, one area might serve as a refuge - a place that could continue to harbor ice-dependent species when conditions in nearby areas become inhospitable. This region north of Greenland and the islands of the Canadian Arctic Archipelago has been termed the Last Ice Area. But research led by the Un...

Email The Chinese paddlefish and its close relatives have been around for at least 200 million years. The species, reaching up to 23 feet in length, survived unimaginable changes and upheavals, such as the mass extinction that killed the dinosaurs and marine reptiles like plesiosaurs that it swam alongside. In its time, flowering plants evolved, and came to populate the shores of its ancestral home, the Yangtze River, in modern-day China. Much later, bamboo came on the scene, and well after that, giant pandas. In the last few thousand years, a blink in evolutionary time, the land filled with ...

The Pacific Northwest is a leader in forage fish management — but it needs better data Hannah Weinberger © Nathan Pilling / Kitsap Sun Herring eggs can be seen clinging to blades of eelgrass along the shoreline at Old Man House Park in Suquamish. Endangered species like salmon and orcas get lots of attention in Washington. We painstakingly track their numbers, and each new baby, individual death or population crash has the potential to spur international reactions. But some species they rely on rarely achieve recognition.  These small, silvery creatures — herring, anch...