Fish introduced to a mirror began to act strangely, swimming upside-down or spreading their fins. They also tried to scrape a mark from their throats. Reading time 5 minutes New research seems to ...

Cancer care has changed a lot in recent years. Doctors do not just look at how a tumour looks under a microscope. They also study the genes inside cancer cells to understand how the disease behaves.

Fluorescence in situ hybridization (FISH) testing is a molecular pathology test that helps identify specific genes in a person’s cells. It can show how genes have changed and whether there is an ...

People are eating more and more fish. To meet rising demand, fish are increasingly being cultivated in fish farms. Aquaculture is the fastest-developing branch of the global food industry, with annual ...

A report that a fish can pass the “mirror test” for self-awareness reignites debates about how to define and measure that elusive quality. A little blue-and-black fish swims up to a mirror. It ...