In turn, yellowfin are preyed upon when young by other pelagic hunters, including larger tuna, seabirds, and predatory fishes such as wahoo, shark, and billfish.
Yellowfins are able to escape most predators, because unlike most fish, tuna are warm-blooded, and their warm muscles make them extremely strong swimmers, with yellowfin tuna reaching "speeds of up to 50 miles per hour".