Teleost fish present a sophisticated integration of nervous, endocrine and immune systems, enabling rapid adaptation to environmental stressors and pathogen challenges. Central to this interplay is ...

Teleost fish possess a sophisticated immune system that integrates innate and adaptive mechanisms to detect, respond to and eliminate pathogens in diverse aquatic environments. Innate defences include ...

What is the origin of the ancestors of present-day fish? What species evolved from them? A 50-year-old scientific controversy revolved around the question of which group, the 'bony-tongues' or the ...

The cartilaginous elephant shark has a basal phylogenetic position useful for understanding jawed vertebrate evolution. Survey sequencing of its genome identified four Hox clusters, suggesting that, ...

The three-spined stickleback (Gasterosteus aculeatus) is a teleost fish that has undergone rapid adaptive evolution and speciation within the last 15,000 years. The benthic species has greatly reduced ...

The most common lineages of fish found today in oceans, lakes, and rivers evolved about the same time as mammals and birds, a new Yale University-led study shows. A genetic analysis by Yale ...

Though present in more than 6,000 living species of fish, the adipose fin, a small appendage that lies between the dorsal fin and tail, has no clear function and is thought to be vestigial. However, a ...

Understanding the evolutionary history of species through their relatedness is an essential issue and regularly the subject of scientific controversy. One of them concerns the position, in the tree of ...