Fish don’t exist. In her novel “Why Fish Don’t Exist,” Lulu Miller points out that a true “fish” clade containing an ancestor ...

Deep-sea fish adapt to some of the most extreme conditions on Earth. New research analyzing their evolution finds the same mutation across fish species that have evolved on separate timelines — ...

Deep-sea fish have adapted through two evolutionary pathways: ancient survivors and new immigrants. A key finding challenges the TMAO hypothesis, revealing a genetic mutation in the rtf1 gene that ...