The zebrafish (Danio rerio) has been a favorite model of developmental biologists and geneticists, but only recently have investigators begun to appreciate its usefulness in behavior genetics. Papers ...

Hagfish represent an ancient lineage of boneless and jawless vertebrates. Among several curious behaviors they exhibit, solitary individuals in one dominant genus of hagfish (Eptatretus spp.) ...

Two brain-signaling molecules control how anemonefish dads care for their young and respond to nest intruders, researchers report in a new study. Because there are many similarities in brain structure ...

The origin of hunting behavior may come from two sets of neurons tucked deep in the forebrain of most vertebrates, a new study suggests. Activating these neurons in living mice prompt them to pursue ...

Stages of aquatic vertebrate feeding and the importance of intraoral food processing. Feeding stages and their significance are exemplarily depicted using the aquatic feeding of Necturus maculosus.

Even Charles Darwin was puzzled by the evolution of the vertebrate eye. New research suggests that it traces back to a cyclopean invertebrate with a single eye atop the head. By Carl Zimmer Look at ...

When the California two-spot octopus isn’t attempting to bring more eight-legged cephalopods into this world, it prefers to be alone. Known to scientists as Octopus bimaculoides, the alien-like ...

Vertebrates produce diverse proteins from single genes, unlike invertebrates. This protein diversity helps vertebrates develop complex organs and cell types. University of St Andrews research offers ...