Naked science big fish

Bigger brain regions caused a 'big bang' in the evolution of African electric fish, new research has shown. The fish, known as mormyrids, produce weak electrical impulses to communicate with one-another. The electric signals are detected by receptors on the fish's body and interpreted by a region of their brains that can either be small and simple, or bigger and more complicated, depending on the species. The scientists tested their hypothesis by placing electric fish collected from Gabon, in West Africa, into experimental tanks that could generate electrical pulses in the water.

Sign in. Want to invest a few hours in front of the TV this weekend? Check out a few of our favorite binge-worthy streaming series. See the full gallery. Title: Big Freeze 29 Mar

You know, some wonderful pictures that show the majesty and beauty in the ocean, but very little had been done along the lines of the problems in the ocean. So, my work has had this somewhat of an evolution, I guess, in my career, in the sense that I too want to make beautiful, celebratory pictures, and in the early days that mostly what I did. But these days I try to balance the happy pictures with some the other side of the story kind of pictures, the pictures that show some of the problems.

Sign in. Want to invest a few hours in front of the TV this weekend? Check out a few of our favorite binge-worthy streaming series. See the full gallery. Then there was the Big Bang.