BREAKING NEWS Heartbreak as Sydney Zoo confirms shock death news
The zoo, located on the Great Western Highway in Eastern Creek took to social media on Friday to announce it was 'deeply saddened' by the loss of the two sharks.
'Extensive investigations by our animal care and veterinary staff, with support from external specialists, included comprehensive necropsies,' it said.
'These examinations found trauma consistent with accidental impact.
'While the precise cause cannot be definitively confirmed, preliminary findings suggest a combination of environmental and biological factors may have played a role in this isolated incident.'
The zoo said all the other animals in the aquarium were healthy but were under observation, saying: 'The wellbeing of our animals remains our highest priority'.
The bull shark section on the zoo's website has been taken down.
Some Aussies lamented the fact the sharks had been kept in captivity.
'Sorry, but these sharks should never of been in captivity as bull sharks are not designed for tanks,' one person said.
'Translation: We put a species that needs a huge amount of space in an enclosed tank and they ran into the glass walls until it killed them,' another said.
A third questioned 'how can it be isolated if two sharks collided with it?'
'Accidental impact from what? I think further explanation is owed here,' a fourth said.
The wildlife is home to more than 4,000 animals.
Bull sharks generally adapt well in captivity and thrive in many aquariums around the world. While their lifespan in the wild is typically 12 to 16 years, some have lived up to 30 years in captivity.
Bull sharks are apex predators and grow to between two to four metres long and can weigh up to 600kg. They are one of the most aggressive species of shark in the world and are responsible for attacks because they can survive in fresh water.
Sydney Zoo was contacted for comment by Daily Mail Australia.
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