The world’s most common fish, the 'bristlemouth,’ is a member of the genus Cyclothone and can't be seen with the naked eye. Living deep in the ocean, 100-250 feet down in the ocean ...

Robinson Olivera/ Conservation International This "blob-headed" fish is a type of bristlemouth armoured catfish This "blob-headed" fish is a new discovery to science, but the Indigenous Awajún ...