the microfossils dating to the Lower Ordovician Period, approximately 480 million years ago, fill an approximately 25-million-year gap in knowledge by reconciling the molecular clock—or pace of ...

Turns out, there's more to the shark than sharp teeth and gills. Read on to learn about these misread sea dwellers.

Sixty-six million years ago, at the end of the Cretaceous Period, an asteroid impact near the Yucatán Peninsula of Mexico ...

A 68-million-year-old skull fossil found in Antarctica has revealed the oldest known modern bird, which was likely related to ...

Some paleontologists think that fossils recovered from Antarctica are evidence of birds similar to modern geese and ducks that lived alongside the dinosaurs.

Sharks have ruled the Earth’s oceans for 400 million years. Recent research on fossil shark teeth has discovered an ...

A marine animal snacked on some sea lilies that did not agree with its stomach—and we now know what happened next ...

A team of researchers may have determined where fossils older than any we’ve ever found may be buried A new paper in Current Biology posits that remnants of an earlier evolutionary stage of ...

The work could have implications for how aquatic species respond to our ... Discovery of 'Punk' and 'Emo' Fossils Challenges Our Understanding of Ancient Molluscs Jan. 8, 2025 — Researchers have ...

Although many methods allow for period-like bleeding, it isn’t necessary. In some cases, bleeding may slow or stop entirely. True menstruation occurs after ovulation when the ovary releases an ...

Things like footprints, burrows, eggs and even poo (called coprolite) can be fossilised too. A fossil is the preserved remains or traces of a dead organism. The process by which a fossil is formed ...

Discovery of 'Punk' and 'Emo' Fossils Challenges Our Understanding ... 2024 — While volcanism caused a temporary cold period, the effects had already worn off thousands of years before the ...