A huge fish in the Mekong River thought to be extinct has been spotted three times in recent years. The giant salmon carp is a predatory fish can grow up to 4 feet in length, and has a conspicuous knob at the tip of its lower jaw. A striking patch of yellow surrounds its large eyes. #nature https://apnews.com/article/mekong-river-ghost-fish-1f86a0a56b9f9fafa9b4255e5c8ac9b3