A fish that subtracts its own electric signals to better ‘see’ through its murky habitat

The elephant-nose fish Gnathonemus petersii relies on electricity to find food and navigate through the obstacles riddling its native murky African rivers. Researchers have presented evidence that the fish’s ability to accurately ‘see’ an ‘electrical image’ of its surroundings requires it to filter out its own electrical interference.

Source: sciencedaily.com