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.

NEW YORK — Scientists report that a fish can pass a standard test of recognizing itself in a mirror — and they raise a question about what that means. Does this decades-old test, designed to show self ...

An international team of researchers has found a small tropical fish that is capable of passing a classic test of self-awareness. The results are published on the bioRxiv prepress server. Since the ...

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 ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A little fish just passed a classic scientific test of self-awareness ...

A little blue-and-black fish swims up to a mirror. It maneuvers its body vertically to reflect its belly, along with a brown mark that researchers have placed on its throat. The fish then pivots and ...

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 ...