### Identification The Alligator Gar is a true armored leviathan, a prehistoric silhouette that has remained largely unchanged for 100 million years. Reaching lengths of up to 10 feet and weighing over 300 pounds, its torpedo-shaped body is encased in "ganoid" scales—diamond-shaped, bone-hard plates that do not overlap. Look for its signature broad, flat snout, which mimics an American Alligator's. Unlike its cousins, the Longnose or Spotted Gar, *A. spatula* possesses a double row of large teeth in its upper jaw—a critical field mark for definitive identification. Its coloration is typically olive or brownish-gray dorsally, fading to a pale, yellowish belly, often with dark mottling near the tail.
### Habitat & Range This species is a specialist of the sluggish waters in the lower Mississippi River basin and the Gulf Coast, ranging from southwestern Florida into Veracruz, Mexico. You’ll find them in large, slow-moving rivers, oxbow lakes, and bayous. Uniquely among gars, they are highly salt-tolerant, frequently venturing into brackish coastal marshes and estuaries to forage.
### Behaviour Observing an Alligator Gar often involves spotting a "gulp." Because they possess a vascularized swim bladder that functions like a lung, they frequently break the surface to swallow air, allowing them to thrive in stagnant, low-oxygen waters where other fish suffocate. They are generally solitary and lethargic, often seen basking near the surface like floating logs. During the spring floods, they move into shallow, inundated vegetation to spawn, where multiple males will flank a single large female.
### Diet Though they look fearsome, they are patient ambush predators rather than active pursuers. They drift motionlessly until a target—typically forage fish like gizzard shad, or even blue crabs and waterfowl—strays too close. With a lightning-fast lateral snap of the head, they impale the prey on those needle-like teeth.
### Fascinating Fact While the meat of the Alligator Gar is edible, their eggs are highly toxic to humans, birds, and other mammals. They contain an ichthyotoxin that serves as a potent evolutionary defense mechanism, ensuring that even if a predator raids a nest, it won’t live to do it twice!