The elephant shark, a primitive deep-sea fish that belongs to the oldest living family of jawed vertebrates, can see color much like humans can. This discovery may enhance scientists' understanding of ...

Predicting the number of protein-coding genes that are present in a genome is complicated by the presence of pseudogenes, by misannotations of non-coding sequence, by the incompleteness of assemblies ...

This study is useful and unique, since hagfish brains are of phylogenetic importance and can reveal features ancestral to all vertebrates. The manuscript is, however, incomplete and would benefit from ...