The basal phylogeny of Chelicerata is one of the opaquest parts of the animal Tree of Life,
defying resolution despite application of thousands of loci and millions of sites. At the …

For centuries, the eye has fascinated scientists and philosophers alike, and as a result the
visual system has always been at the forefront of integrating cutting-edge technology in …

Long-branch attraction is a systematic artifact that results in erroneous groupings of fast-
evolving taxa. The combination of short, deep internodes in tandem with long-branch …

Despite significant advances in invertebrate phylogenomics over the past decade, the
higher-level phylogeny of Pycnogonida (sea spiders) remains elusive. Due to the …

The whip spider family Charinidae Quintero, 1986 is the most speciose and widely
distributed in the arachnid order Amblypygi Thorell, 1883. It comprises three genera and 95 …

Chelicerate arthropods exhibit dynamic genome evolution, with ancient whole-genome
duplication (WGD) events affecting several orders. Yet, genomes remain unavailable for a …

Background Spiders evolved different types of eyes, a pair of primary eyes that are usually
forward pointing, and three pairs of secondary eyes that are typically situated more posterior …

More than a century of research, of which JEB has published a substantial selection, has
highlighted the rich diversity of animal eyes. From these studies have emerged numerous …

Vestigial organs provide a link between ancient and modern traits and therefore have great
potential to resolve the phylogeny of contentious fossils that bear features not seen in extant …

Background The resurgence of interest in the comparative developmental study of
chelicerates has led to important insights, such as the discovery of a genome duplication …