From the article: Mariana Snailfish (found at depths beyond 26,000 feet (~8000m): > These extremophiles only grow to be around 11 inches long, but despite thei

From the article: Mariana Snailfish (found at depths beyond 26,000 feet (~8000m): > These extremophiles only grow to be around 11 inches long, but despite their small size, they are among the top predators of their realm. They consume tiny crustaceans hidden in seafloor sediment. Dunno about 'apex', but there are some awesome predators down there for sure! (anglerfish, gulper-eel, etc)