The most deadly animals ever discovered were discovered in Australia’s north-west by researchers, but not all of them are native to the region.
One of the most dangerous ones was a baby dolphin that died in captivity after it was discovered in a saltwater pond.
“We were in a pond at a lake, about 100 metres from a lake and we saw a dolphin lying there, its belly hanging down, so I took it out and put it in the boat,” said Dr Andrew Jett, a researcher at the University of Tasmania.
After examining the carcass, the team realised it was a juvenile dolphin that had died after being taken to a pond in Tasmania’s north.
The researchers then found the dolphin had been caught by a fishing boat off the coast of the Darwin area and dragged to the water.
Its mother was also found dead in the same area, which means it was in the water at the same time.
Scientists said they had no idea the baby dolphin was actually a dolphin and that the cause of death was unknown.
But the discovery did raise the possibility that the animal may have died from natural causes, such as drowning or drowning from starvation.
“It could have been a young dolphin that got trapped in the saltwater, or it could have died in a previous season of hunting,” Dr Jett said.
Dr Jett told New Scientist that the findings were a great surprise.
“We thought it might be a sick dolphin, because it was dead, but the researchers couldn’t explain why it died, so we thought it was probably a baby.”
The researchers also discovered a large number of juvenile bottlenose dolphins living in and around the lakes, and said the research had given them a better understanding of the behaviour of the animals.
More than 50 species of dolphins live in the Northern Territory, including the bottlenosed dolphin, which is a subspecies of bottlenoses, which are common in tropical areas.
They can be found from the southern tip of the Torres Strait to the coast, in the central part of the state, and around Darwin and the northern coast of Tasmania, where they feed on fish and small crustaceans.
Although they have been known to attack humans, they rarely cause injury.