Search Results for: aquatic ecology
197 results
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PaleontologyMeet the tiny ancient whale named after King Tut
The newly discovered Tutcetus rayanensis lived about 40 million years ago. It was just 2.5 meters long and weighed less than 200 kilograms.
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EcosystemsThis seagrass is taking over the Chesapeake Bay. That’s good and bad news
Higher water temperatures are wiping out eelgrass in the Chesapeake Bay and weedy widgeongrass is expanding. Here’s why that seagrass change matters.
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Life1.6-billion-year-old steroid fossils hint at a lost world of microbial life
Molecular fossils suggest the existence of a lost world of primitive eukaryotes that dominated aquatic ecosystems from at least 1.6 billion to 0.8 billion years ago.
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AnimalsThis marine biologist is on a mission to save endangered rays
Jessica Pate and the Florida Manta Project confirm that endangered mantas are mating and sicklefin devils are migrating along the East Coast.
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PaleontologySpinosaurus’ dense bones fuel debate over whether some dinosaurs could swim
New evidence that Spinosaurus and its kin hunted underwater won't be the last word on whether some dinosaurs were swimmers.
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AnimalsWhale sharks may be the world’s largest omnivores
An analysis of the sharks’ skin shows that the animals eat and digest algae.
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AnimalsHuge numbers of fish-eating jaguars prowl Brazil’s wetlands
Jaguars in the northern Pantanal ecosystem primarily feed on fish and caiman, living at densities previously unknown for the species.
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ArchaeologyAncient Homo sapiens took a talent for cultural creativity from Africa to Asia
Excavations at two sites continents apart show that Stone Age hominids got culturally inventive starting nearly 100,000 years ago.
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AnimalsThe U.S.’s first open-air genetically modified mosquitoes have taken flight
After a decade of argument, Oxitec pits genetically modified mosquitoes against Florida’s spreaders of dengue and Zika.
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LifeThese are the 5 costliest invasive species, causing billions in damages
Invasive species have cost the global economy at least $1 trillion since 1970 and $162.7 billion in 2017 alone. The annual cost is increasing.
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EcosystemsFewer worms live in mud littered with lots of microplastics
The environmental effects of microplastic pollution are still hazy, but new long-term, outdoor experiments could help clear matters up.
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EarthToo much groundwater pumping is draining many of the world’s rivers
Too much groundwater use could push over half of pumped watersheds past an ecological tipping point by 2050, compromising aquatic ecosystems worldwide.