Birds are the most diverse land vertebrate on the planet, and now scientists have constructed a complete evolutionary tree of the 11,000 or so known species. This data came from hundreds of studies ...

That’s the literal translation of the term Dinosauria, coined by Sir Richard Owen in the 19th century to describe the colossal bones early paleontologists were unearthing. For a long time, the name ...

A newly identified sponge order, Vilesida, produces sterols linked to the oldest-known animal biomarkers, supporting the idea ...

Frontmatter -- CONTENTS -- PREFACE AND NOTES -- ACKNOWLEDGMENTS -- 1. Before Animals -- 2. Phylogenetics and the Base of the Animal Tree of Life -- 3. Ctenophora -- 4 ...

My colleague and I have published a new study of cactus flowers which may help explain the conundrum. For more than a century ...

Sharks might not be a natural biological group, with most species potentially closer kin to rays than to an oddball group of ...

This photograph shows two species from the study by Toussaint et al. – a raccoon (Procyon lotor) and mongoose lemur (Eulemur mongoz) – climbing on vertical supports. Researchers have shed new light on ...

Copenhagen-based artist Jeppe Knudsen Ringsted merges science, design and cartography in Mappa Animalia, a visual project ...

Researchers at Northwestern University have identified a single mechanical ratio that dozens of unrelated sea creatures, from ...

Roy M. Farman received funding from the Research Training Program through the University of New South Wales. Mike Archer has received funding from the Australian Research Council, the Australian ...