Animals have started to die. The water hyacinths on the two rivers have turned black. Some Golpata trees have gone under heavy layers of oil.

One local, Abu Jafar, spotted two animals -- a monitor lizard and an otter -- dead and smeared with oil along the banks of the Shela.

Meanwhile, the authorities pulled the sunken oil tanker ashore around 11:00am yesterday, some 30 hours after the accident. But all the 3.58 lakh litres of furnace oil the tanker had been carrying already spilled into the rivers and the adjacent cannels.

Few reptiles can breathe underwater. Australia is home to one of the exceptions, the white-throated snapping turtle (Elseya albagula), which can extract oxygen from water through its backside via a process called cloacal respiration. This unusual technique, shared by a handful of other turtle and fish species, gave the turtles an evolutionary advantage for millennia, allowing them to hide from predators underwater for days at a time.

Unfortunately, breathing out of your butt requires very specific conditions that no longer exist in the turtles’ only habitat, Queensland’s Connors River and three nearby catchments. Dams, weirs, agriculture and mining have left the water sluggish and full of sediment. That makes it significantly harder for the turtles—especially vulnerable juveniles—to stay underwater. As a result, predation has increased to the point where populations have crashed. The problem has gotten so bad that less than 1 percent of eggs and young turtles survive to adulthood and the species has now been declared critically endangered by the Australian government

Iqbal has already paid bus fare and an entrance fee and given a donation to the shrine’s saint. Now she’s worried that the meat’s inflated price means she won’t have enough money to get home. The crocodiles’ caretaker, Shahan Mahmood, shakes his head sadly. He can’t afford to sell her the meat at a lower price.

“The crocodiles are starving,” he says. “No one is coming to feed them.”

In the last year, Mahmood and the rest of the shrine’s caretakers have buried two crocodiles. For two years, they say, very few of the eggs laid by the reptiles here have hatched. Iqbal forks over the change and watches as the caretaker walks to the makeshift iron fence to feed the closest crocodile. Mahmood says this is the first purchase of meat he has seen in three days.

The 19-year-old has been brought over for a new conservation project to help research ways to prevent the giants from becoming extinct in the wild and was named after one of the project’s partners.

Professor Wu is the only Chinese giant salamander in the UK and can be seen in the Land of Giants exhibit at the zoo.

The animals are classified as the world’s largest amphibian and face threat of extinction because they are being over-harvested for human consumption.