AbstractThe usefulness of ecoregions and catchments (hydrologic units) as bases for classifying aquatic vertebrate assemblages in western Oregon was compared using samples collected by electrofishing ...

The cradle of vertebrate evolution was limited to a zone of shallow coastal waters, no more than 60 meters deep. In those waters, fish — the first vertebrates — appeared roughly 480 million years ago, ...

Although less familiar as flower visitors than insect pollinators, vertebrate pollinators are more likely to have coevolved tight relationships of high value to the plants they service, supplying ...

Scientists have discovered a gene that appears to play a vital role in pheromone sensing. The gene is conserved across fish and mammals and over 400 million years of vertebrate evolution, indicating ...

This story appears in the October 2017 issue of National Geographic magazine. From scales to feathers to fur, vertebrates clothe themselves in a dazzling variety of textures and hues. But scientists ...

The sympathetic nervous system, which enables the fight-or-flight response, was thought to be present only in jawed vertebrates. Analysis of a jawless vertebrate suggests that this system might be a ...

The Early Cretaceous Jehol Biota of northeastern China has become famous over the last two decades as a source of feathered avialan and non-avialan theropods, preserved alongside an array of other ...