There really is no tuna anything like the dogtooth. It’s one of the larger tunas, but unlike yellowfin or bigeye (in fact, the scaleless dogtooth is a species of bonito), it sports a mouthful of daggerlike teeth — and rather than patrolling the high seas in big, predatory schools, the solitary dogtooth prowls slopes and channels through large coral reefs. But it is a tuna and known for its very tunalike endurance when hooked. Dogtooth are found throughout the Indo-Pacific, and readily strike metal speed jigs, baits and trolled lures. The IGFA all-tackle record is shared by two different 230-pounders, both from Mauritius, one in 1993 and one in 2007.