A Hesperapis regularis bee visits a flower of Clarkia cylindrica at Pinnacles National Park. Credit: Tania Jogesh Study of flowers with two types of anthers solves mystery that baffled Darwin. Some flowers use a clever strategy to ensure effective pollination by bees, doling out pollen gradually from two different sets […]

Mollusks of a sample from Southern Israel: in red, those belonging to species of Red Sea origin, in blue, those of Mediterranean origin. Native species are very few, whereas tropical ones are dominant, marking the transformation of the ecosystem. Credit: © Paolo Albano Most native species are going locally extinct, […]

ANIMATION New research by scientists at the University of Bristol explains how a “stop-start” pattern of evolution, governed by environmental change, could explain why crocodiles have changed so little since the age of the dinosaurs. Crocodiles today look very similar to ones from the Jurassic period some 200 million years ago. There are also […]

ANIMATION University of Copenhagen researchers have discovered how mosses became one of our planet’s most widely distributed plants — global wind systems transport them along Earth’s latitudes, to rooftops, sidewalks, and lawns worldwide, and as far away as Antarctica. This new knowledge can provide us with a better understanding of […]

The banyan tree Ficus macrocarpa produces aerial roots that give it its distinctive look. A new study reveals the genomic changes that allow the tree to produce roots that spring from its branches. Credit: Photo by Gang Wang The banyan fig tree Ficus microcarpa is famous for its aerial roots, which sprout […]

An artist’s impression of the new sea dragon, Thalassodraco etches, in the Late Jurassic seas. Credit: Megan Jacobs An amateur fossil hunter has unearthed a new type of prehistoric ‘sea dragon’ on the beach of the UK’s Dorset coast. The new 2m-long ichthyosaurus is named ‘Etches sea dragon,’ after fossil […]

Braincase and endocast of Thecodontosaurus antiquus. From CT scans of the braincase fossil, 3-D models of the braincase and the endocast were generated and studied. Credit: Created by Antonio Ballell with BioRender.com, Thecodontosaurus silhouette from PhyloPic.org A pioneering reconstruction of the brain belonging to one of the earliest dinosaurs to […]

A new study applies machine learning to the fossil record to visualize life’s history, showing the impacts of major evolutionary events. This shows the long-term evolutionary and ecological impacts of major events of extinction and speciation. Colors represent the geological periods from the Tonian, starting 1 billion years ago, in […]

A skeleton of an island fox. Credit: University of Missouri University of Missouri researcher adds to timeline of human evolution by studying an island fox. Nearly two decades ago, a small-bodied “human-like” fossil, Homo floresiensis,was discovered on an island in Indonesia. Some scientists have credited the find, now nicknamed “Hobbit,” as […]

Mass extinctions align with major asteroid impacts and devastating volcanic outpourings of lava called flood-basalt eruptions. Researchers find that timing of mass extinctions lines up with asteroid impacts and massive volcanic eruptions. Mass extinctions of land-dwelling animals — including amphibians, reptiles, mammals, and birds — follow a cycle of about […]