The lungs of humans are protected by a sophisticated defense system. Similarly, fish have a specialized system to protect their gills. This is a close-up view of the gills of a zebrafish and the ...

The outer ears that sit on the sides of your head share an unexpected genetic heritage with the gills of fish. According to research published in the journal Nature by scientists from the ...

Fish gulp water through their mouths and pump it over their gills, which contain thousands of tiny filaments through which blood flows. The blood absorbs oxygen from the water as it passes over ...

Researchers used powerful tech to analyse thousands of individual cells at once, considering which genes are active and how DNA is organised within each cell. The outer ears that sit on the sides ...