In vertebrate retinas, specialized photoreceptors responsible for color vision (cone cells) arrange themselves in patterns ...

Segmentation of the vertebrate body is first established during embryogenesis by the periodic formation of pairs of somites — for example, every 120 minutes in mouse, 90 minutes in chicken and 3 ...

A team of researchers from the Institute for Neurosciences, a joint center of the Spanish National Research Council (CSIC) ...

The changes in metabolic activity associated with endothermy and the change from gill to lung respiration has led to changes in vertebrate circulatory systems. Veins between two capillary networks are ...

A fossil analysis suggests that the yunnanozoan, a wormlike fish that flourished around 520 million years ago, sported structures that were the precursors of the head and jaws of modern vertebrates.

He doesn't even have a head. If Blob had been born with a spine, or backbone, he would have been a vertebrate. If we give Blob some legs and a head then he can start to move about. There are lots ...

View Full Profile. Learn about our Editorial Policies. The paucity of fossils from the time of the earliest vertebrates—around 480 million years ago—has made it hard to definitively determine the ...

How the developmental program has evolved to generate the impressive morphological diversity of organs and tissues across vertebrates ? What are the relationships between form and function of ...

The craniofacial complex (head, face) represents the most highly sophisticated and diversified anatomical aspect of vertebrates. Craniofacial tissues such as skull bones, teeth, and the brain are ...