Fossilized tracks from an early reptile are now the oldest known reptilian tracks, meaning the tetrapod ancestor most likely appeared earlier, during the Devonian period. These tracks were made by ...

Prior to this finding, the Devonian Period was believed to be a time of primitive fishlike tetrapods and “fishapods” like Tiktaalik, which exhibited traits of fish and early tetrapods and ...

May 23, 2025 — Researchers have developed a vascularized organoid model of hormone secreting cells in the pancreas. The advance promises to improve diabetes research and cell-based ...

May 21, 2025 — Researchers have shown that gonadotrophs, cells in the pituitary gland with a key role in puberty and reproduction, come from two different populations, with the majority produced ...

Fossilized tracks in Australia reveal amniotes evolved 35-40 million years earlier than thought, pushing tetrapod origins back to the Devonian period. News Today's news ...

Something else could possibly be demystified by the footprints—the end-Devonian mass extinction was thought to have such a catastrophic impact, it could explain why tetrapods don’t appear in the ...

And why is that? Well, simply said, we cannot intensify a treatment, so we cannot intensify chemotherapy, and outcomes with BR in these biological high-risk patients, which are high Ki67 or blastoid ...