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Search results for vertebrate

Paleontology & Fossils Apr 8, 2025

Scientists shed light on life and times of 'Fiona' the pregnant ichthyosaur

About 131 million years ago, an 11-foot-long ichthyosaur slammed snout first into the seafloor and was rapidly buried by sediments—a sequence of events that helped preserve not only her skeleton, but that of her unborn ...

Plants & Animals Apr 3, 2025

European catfish has prolonged breeding season, enhancing its invasive potential

The European catfish is the largest freshwater fish in Europe, reaching up to 2.8 meters in length and 130 kg in weight. It was first detected in Portugal in 2014. As a top predator, it has no natural enemies and exhibits ...

Evolution Mar 27, 2025

Cartilage and bone development: Three paths to skeleton formation

In vertebrates, the skeleton of different regions of the body arises from different precursor cells. Researchers at the University of Basel have now discovered that these skeletal cells do not just differ in their developmental ...

Evolution Mar 26, 2025

Undergrads uncover ancient secrets of human immunity

Three Husker students under the mentorship of Luwen Zhang, a leading University of Nebraska-Lincoln virologist, have achieved a rare feat for undergraduates.

Cell & Microbiology Mar 25, 2025

C. diff uses toxic compound to fuel growth advantage, researchers discover

The pathogen C. diff—the most common cause of health care-associated infectious diarrhea—can use a compound that kills the human gut's resident microbes to survive and grow, giving it a competitive advantage in the infected ...

Paleontology & Fossils Mar 17, 2025

A 15-million-year-old fossilized freshwater fish with preserved stomach contents is a newly discovered species

In an Australian first, researchers have described a new species of 15-million-year-old fossilized freshwater fish, Ferruaspis brocksi, that shows preserved stomach contents as well as the pattern of coloration.

Evolution Mar 13, 2025

DNA and 90 million-year-old pollen fossils reveal new insights into evolution of Asian tropics

In a new study published today in Science, researchers from the Royal Botanic Gardens, Kew (RBG Kew), together with global partners, combine results from two newly discovered prehistoric palm fossils with DNA from global ...

Plants & Animals Mar 9, 2025

Megalodon's body size and form uncover why certain aquatic vertebrates can achieve gigantism

A new study provides many new insights into the biology of the prehistoric gigantic shark megalodon (megatooth shark), which lived nearly worldwide 15–3.6 million years ago. Paleobiology professor Kenshu Shimada of DePaul ...

Evolution Feb 25, 2025

Humans have the earliest jawed fish to thank for their flexible joints, study suggests

The efficient architecture of our joints, which allows our skeletons to be flexible and sturdy, originated among our most ancient jawed fish ancestors, according to a study published in the open-access journal PLOS Biology ...

Plants & Animals Feb 24, 2025

Study shows bigger animals get more cancer, defying decades-old belief

Elephants, giraffes, pythons and other large species have higher cancer rates than smaller ones like mice, bats, and frogs, a new study has shown, overturning a 45-year-old belief about cancer in the animal kingdom.

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