Our Earth’s atmosphere was not always the safe haven it is today. New research, informed by ancient ocean fossils, provides a glimpse into a time when our planet’s atmosphere was inhospitable and ...

A recent study has made microscopic fossils messengers from a warmer world, showing that the tropical Pacific Ocean could be much more stable—and robust—than previously thought. Analyzing nitrogen ...

Deep in Earth's ancient oceans, scientists have unearthed 97-million-year-old giant magnetofossils harboring an internal ...

Examples of fossil lower beaks of squids from the Late Cretaceous discovered in this study. Scalebar: 1mm. Credit: Ikegami et al., Science, June 26, 2025 Squids first appeared about 100 million years ...

Today, the Arabian Gulf is home to manatee-like marine mammals called dugongs that shape the seafloor as they graze on seagrasses. A newly described fossil site in Qatar reveals that ancient sea cows ...

Bountiful remains of foraminifera reveal how organisms responded to climate disturbances of the past Tim Vernimmen, Knowable Magazine Studying foraminiferan fossils can help us understand how the ...

For centuries, massive teeth found along coastlines puzzled scientists and naturalists. Researchers later discovered these ...

PLATE 1. Figures 1–4: Carcharhinus amblyrhynchoides (DGCUSB/BB-115,112), upper antero-lateral, Figures 5–6: Carcharhinus brevipinna (DGCUSB/BB-136), upper tooth, Figures 7–10: Carcharhinus perezi ...

(via PBS Eons) This is the hundred-year tale of how an unlikely bunch of bottom-dwelling marine critters helped reveal that ocean basins are basically reincarnated every few hundred million years.