Long considered possible evidence of some of the earliest animal activity ever recorded, these tiny fossils discovered in ...

Long before humans built cities, made tools, or even appeared on Earth, the planet ...

Fern-like bodies once covered the seafloor, some stretching as tall as a person. Yet for millions of years, the animal world ...

A tiny fossil fish, roughly 3 centimeters long and approximately 436 million years old, has been identified as the oldest known bony fish ever found, pushing back the timeline for when the ancestors ...

Ancient Australian fossils indicate that the earliest eukaryotes depended on oxygen, providing new evidence that oxygen ...

The sail-backed predator Dimetrodon is one of the most iconic animals of the early Permian—long before dinosaurs dominated Earth. Most known species of this early relative of mammals reached large ...

The way that Earth's first animals reproduced held back life's diversity for millions of years, until stress and competition ...

NEW YORK (AP) — How long has our species been around? New fossils from Morocco push the evidence back by about 100,000 years. The bones, about 300,000 years old, were unearthed thousands of miles from ...

New fossil discoveries are reshaping scientists’ understanding of a pivotal chapter in human evolution, revealing that ...

Learn more about Qreiya 3 Lagerstätte, a fossil-rich site that could help fill key gaps in marine evolution.

A 550-million-year-old fossil found along the Yangtze River may explain why Earth's earliest animals left almost no trace ...

New research revealed that a giant scorpion that lived 415 million years ago may have grown longer than a modern refrigerator ...