On Tuesday, October 15, mysterious black balls appeared on Coogee Beach in Sydney. It remains unclear where they came from, what they are composed of, or if they pose any danger to humans.

Though it's a bit smaller than its better-known northern counterpart Bondi, Coogee Beach is the quintessential spot for those looking to soak up some sun and swim in Sydney's famous waters.

The swimmer initially thought she had stepped on a stonefish at Coogee Beach in Western Australia after discovering a barb still lodged in her toe. Images from the beach show the object sticking ...

And they’re being routinely spat out and left to decay around Coogee Beach and surrounding parkland where children could pick them up. “They’re pretty gross. I use a rubbish picker which was ...