Buildup of a DNA-repair protein in brain cells spurs shut-eye in the fish, a study finds, and similar results in mice suggest the mechanism is widespread in animals.

A gain-of-function mutation in a single gene reveals ancient limb-forming capacity that has been preserved for hundreds of millions of years.

Enhancers, short regions of DNA that direct gene expression, of species separated by 700 million years of evolution worked interchangeably, according to a new study.

The University of Alabama at Birmingham neuroscientist aims to determine which cells are most important in prompting the disease’s initiation and progression.

Researchers could anticipate which way an eight-day-old zebrafish will flick its tail based on brain activity 10 seconds earlier.

Studies of the rosette-like structure can reveal clues to brain recovery after injury.

Neurons can only efficiently fix genetic injuries when the animals are asleep.

Zebrafish detect water movement around them through signals sent to the brain by cells containing tiny hairs.

Fluoxetine dampened stress responses in zebrafish embryos exposed to the drug—and their descendants.

An unusual population of immune cells appears to exist in zebrafish as well as mammals.

A zebrafish model of the birth defect craniosynostosis provides insights into how the condition develops.

The winner of the 2018 Nikon Small World in Motion video competition shows the development of sensory neurons in a zebrafish embryo.

Despite being made of different materials, zebrafishes’ and land animals’ scales form in a similar process.

Live-cell imaging reveals the secrets of innervation in the pancreas of zebrafish.

The miniscule carriers successfully transported and released live cells at a particular location within living mice.

A trio of papers provide new insight into embryo development.

By combining two new microscopy technologies, researchers filmed immune cells toiling away in the inner ear of a living zebrafish.

Selected Images of the Day from the-scientist.com