Rare fossils discovered in southern China reveals that the earliest creatures with spines — ...

The earliest recorded vertebrates had four eyes to escape predators in the ancient Cambrian ocean, according to half-a-billion-year-old fossils from China that shed light on our evolutionary origins.

A pair of Sacabambaspis fish, around 35 cm in length, which had distinct, forward-facing eyes and an armored head. No fossils of animals like Sacabambaspis from after the Late Ordovician Mass ...

Conceptual overreach Conflation of distinct mechanisms BRT erroneously combines intra-lineage processes (balancing selection, cryptic variation) with inter-lineage processes (HGT) into a single, ...

In tropical climates, lizards are everywhere. It can be a bit wild to see, and they come in all shapes and sizes. They seem a tad superfluous in such large varieties leaving one to wonder, what ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

Evolution is both a fact and a theory. Evolution is widely observable in laboratory and natural populations as they change over time. The fact that we need annual flu vaccines is one example of ...

This event is closed to the public. During the Holocene the scale and complexity of human societies increased dramatically. Generations of scholars have proposed different theories explaining this ...

This important study introduces an approach to discovering antibiotic resistance determinants by leveraging diverse susceptibility profiles among related mycobacterial species, with particular ...

This work shows that resistance profiles to a variety of drugs are variable between different mycobacterial species and are not correlated with growth rate or intrabacterial compound concentration (at ...

A long-held theory involving the quickened pace of evolution over short time frames could be explained by an “anomaly” revealed by researchers in a new study. This idea tends to hold that organisms ...