The summaries below were drafted with the help of AI tools and edited by journalists in our News division. All linked stories were reported, written and edited by McClatchy journalists. Unique ...

A team of marine biologists, Earth scientists and evolutionary specialists affiliated with several institutions in the U.K., has found that prior researchers studying a fossil of an ancient sea ...

For decades, experts believed that the largest and most powerful predators in ancient oceans were vertebrates such as large fish and marine reptiles. Invertebrates like octopuses and squid were ...