In the world of phylogenetics, there's team sponge and team comb jelly. Which creature roots the animal tree of life—the simple sponge or the more complex comb jelly—has stirred fierce debate among ...

Genomes are key to unlocking life's evolutionary history. The presence and absence of certain genetic sequences and mutations ...

A 580-million-year-old fossil suggests that evolution of bilateral symmetry may be simpler than previously thought, Nature reports. The fossil, an eight-armed swirl named Eoandromeda after the galaxy ...

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 ...

A series of whole genome and gene duplication events that go back hundreds of millions of years have laid the foundations for tissue-specific gene expression, according to a new study. The 'copy-paste ...

Scientists use a novel application of chromosomal analysis to finally answer a question that has challenged biologists for over a century. When you purchase through links on our site, we may earn an ...