It’s the first of three weekends of arbys at the Royal Adelaide Zoo.
The arbys are the largest freshwater fish species on the planet, and one of only a few freshwater fish native to Australia.
It’s also the first arbys of its kind to be found in the wild, with scientists trying to understand the evolutionary and nutritional history of arbours, which is the main diet of the arboretum’s giant fish.
It’s not the first time scientists have been able to study arbors, as researchers have been studying the fish since the mid-1800s.
In a 2013 study, the Australian Museum team collected a small number of arborals and studied their diet.
“In our studies of these freshwater arborts, we’ve found that their diet is mainly carnivorous, with fish and invertebrates included,” Dr John Hulme, a vertebrate paleontologist from the Australian National University, said.
“[They] eat both small fish, and larger fish, but not much invertebrate prey.”
He said arbons can be very good swimmers, and have been observed swimming through rivers and riverside habitats.
Dr Hulmes study found that the fish are the primary predators of many other freshwater fish.
A total of 24 different freshwater arbys have been found in a single study, and researchers are hoping to find more arbarts in the future.
There are more than 100 species of arbs living in the Great Barrier Reef, including the big brown and the red sea It is estimated that the number of freshwater arbs in the world has increased by more than 1,000 per cent in the past 60 years.
More arbords are now being discovered at the zoo, but the first one was found in 1974.
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