An environmental consultant was appalled to find two small sharks shoved in their friend's wheelie bin this week, prompting outrage from residents on Queensland's Sunshine Coast.
On Wednesday, a man, who wishes to remain anonymous, shared a picture to a community Facebook page of what appears to be two small, dead sharks.
The man said the sharks were placed in his friend's bin in Noosaville on Tuesday.
"To whoever did it. The universe is watching you," he wrote.
"It's pretty hard to understand what people think and do with nature," the man told Yahoo News Australia.
"I believe they were fished accidentally probably with some sort of net as there were no signs of a hook. If this was true, the sharks came alive in the net and could have been put back in the water."
He questioned why someone brought the sharks inland and disposed of them in a bin.
He explained he shared the picture to Facebook because as an environmental consultant, he tries to "sensitise" people to these types of incidents.
People were repulsed by the sight of the dead sharks carelessly thrown in the bin.
"Who would do such a thing?" someone commented.
Another person said the ordeal was "terribly sad".
The environmental consultant told Yahoo News Australia a taxonomist from Fisheries NSW said the sharks could be Dusky Whalers.
Dusky Whaler sharks can be found along the east coast and most of the west coast of Australia.
The Australian Museum said the species are found in "continental and insular shelf waters from the surface to a depth of 400m".
Yahoo News Australia contacted Flinders University with the hope of identifying the species.
The university said it was impossible for experts to determine from a photo as there are a lot of different Carcharhinus species in southeast Queensland.
However, the university said it is likely either a sharpnose shark (Rhizoprionodon) or hardnose shark (Carcharhinus macloti).
"More imagery is required to make an accurate assessment," the university said.
On Saturday, the Australian Institute of Marine Science told Yahoo News Australia one of its shark researchers believes it is likely to be a milk shark (Rhizoprionodon acutus).
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