iHerp Australia Issue 9 | Page 49

E arlier this year the St. Augustine Alligator Farm Zoological Park in north Florida celebrated its 125th birthday. Today, the Alligator Farm is on the National Register of Historic Places and welcomes over 200,000 visitors annually. The main attraction of the afternoon is feeding time, and while locals and tourists alike begin to congregate around the glass enclosure overlooking the ‘pit’, dozens of American Alligators (Alligator mississipiensis) start their own journey, easing off the banks surrounding the lagoon and meandering slowly through the water. “Gators are ambush predators,” Kiersten Wallace, a staff member, explains, as she tosses giant gator ‘biscuits’ to the waiting hordes. “Usually all you will see near the water’s edge are the ears, the eyes and nostrils. That’s all you can see exposed. Then, with one big burst, they’ll grab their prey and roll with it. They can’t chew; alligators can only ‘tear’, so they clamp down with incredible bite strength and then they roll.” Rolling effectively drowns the prey item, and if it is too large to be consumed in a single meal, main- taining it beneath the water will allow it to rot, until piece after piece, chunk after chunk can be ripped off for a convenient snack. Kiersten sails another pair of nuggets into the midst of the gators. A mass of olive-black carnivores is patiently waiting near the wooden platform where she is divvying out the rations. “Alligators are also opportunistic, grabbing food whenever the opportunity might arise, but only if they are hungry. They spend most of their day thermoregulating their body temperature, so in actuality, they don’t require that much food. After a good meal, they might not eat again for a week.” When I visited here over 25 years ago, the delicacy of choice was the Nutria, or Coypu (Myocastor coypus), a huge rodent native to South America that is about three times the size of a Muskrat. Implicated in the destruction of wetlands in the United States, Coypu were readily harvested in the nearby swamps. Yet despite the meat being sold for human consumption in eastern Europe, according to Gen Anderson, the General Curator of the Farm, it was found to be deficient in vitamins A and E, which can affect the fertility of the alligators. “Plus, we learned that the rodents were killed with lead bullets. This led to unusually high concentrations of lead in the alligators’ bodies. We didn’t learn that until later though, because it takes a long time to show up.” Now, the alligators are fed a diet of specially- formulated biscuits made by Mazuri, a global leader in exotic animal nutrition, notably zoo species, and a division of Purina. Presently, even Right: the author catches a ride on a replica alligator. Image courtesy Vickie Lillo. visitors can share in the feeding excitement - shove a quarter into one of the machines and a pellet slides down a chute. Hungry alligators, using their excellent hearing to tune in to the clink of that 25-cent piece, often hover nearby, their maws agape. The reptiles begin to cluster around Kiersten, sensing the caretaker has a special treat - their preferred snack of frozen white rats. She plucks a good-sized specimen from her bucket and dangles it by the tail. The pink nose brushes across a couple of teeth in a gator’s wide-open mouth. “C’mon,” she jokingly chastises the animal. “You can make more effort than that!” Seconds later, the prodigious jaws snap shut and the rat disappears down its gullet, as the gator slides back down into the water. St. Augustine has an impressive collection of American Alligators, all of which are tracked with state-of-the-art transponder chips inserted in the neck, just underneath their nuchal scutes. Considered an endangered species in the 60s and 70s, today gators are enjoying a resurgence due to legislation enacted partly through the efforts of the ‘The alligator is a CONSERVATION SUCCESS STORY , with MORE THAN A MILLION now in both Florida and Louisiana.’ St. Augustine Farm. The Smithsonian’s National Zoo considers the alligator to be a modern ‘conservation success story’, with over a million of these reptiles now residing in both Florida and Louisiana. Adult American Alligators comprise six to eight hundred pounds of pure muscle, with one third of the body weight concentrated in the formidable tail that functions as a propeller in the water. The