bizarre fish available to hobbyists, and chances are the black ghost knife fish will be in there. Besides looking incredibly cool, these Amazon basin creatures have two rather unusual ...

The black ghost knifefish lives in the rivers of the Amazon Basin, using a self-generating electric field to see through the murky waters. It doesn’t have traditional fins like a bony fish ...

Previously, we’ve seen swimming robots inspired by the cow-nosed ray, the black ghost knife fish, and the jellyfish – to name just a few. Now, the engineers at AeroVironment have taken it upon ...