Acco, an impressive 16-foot saltwater crocodile. Want a closer look? Check out More Crocodile Photos. Enhance your experience: Watch Acco in Action! To learn more about the zoo, check out The Australia Zoo in Depth. Ready for more? Head back to the Australia Zoo Map.

Acco and Connie, a pair of wild-caught crocodiles, share an enclosure at the Australia Zoo.

Acco is an estimated 70 to 80 years old. Caught in Cattle Creek, North Queensland, Acco would likely feed on large mammals if he were still in the wild, such as bulls, cows, horses, feral pigs and Asian water buffalo.

At 16 feet in length and about a ton in weight, Acco is the Australia Zoo's largest saltwater crocodile. He is also the smartest crocodile at the zoo. With age comes wisdom, as it is said! It took Steve two years from the time he first found the crocodile's tracks in the mangroves to when he finally caught the big fella in a trap.

Acco protects his water hole, as well as his girlfriend, Connie, with an impressive show of power and incredible bulk.

Connie is approximately 50 years old. She was caught in the Burdekin River and if still in the wild would eat flying foxes, turtles, water birds, fish and wallabies.

Connie is a quiet female, and at 9 feet long she commands respect. She is an awesome mother, protecting her nest like there is no tomorrow. She loves Acco and enjoys his company, spending many hours sunning beside him or with her head resting on his muscular build.

Amazing Croc Facts

The saltwater crocodile is the largest reptile in the world, and perhaps the most dangerous. Along with alligators, saltwater crocodiles are responsible for more human fatalities per year than any other predator on Earth.

They are powerful swimmers, expertly adapted to life in the water, where they do almost all of their hunting. Their eyes and nostrils are located on top of their head, which allows them to see and hear prey while partially submerged.

Saltwater crocodiles prefer to take prey from the water's edge. These patient predators will float for hours on end, eyes focused on the bank, waiting for a thirsty animal to approach for a drink.

When a victim is spotted, the crocodile drops below the surface, inches forward to within striking range, then launches out of the water with a violent, bone-crushing attack. Hapless animals that don't get out of the way are dragged beneath the water's surface and drowned.

After twisting off a few mouthfuls of flesh, the crocodile will secure the carcass underwater beneath a log or riverbank, allowing it to rot over the course of several days, during which the reptile feeds on its prize at leisure.