There has been a shark attack in Sydney Harbour. A boy, believed to be 12-years-old, was mauled near rocks off Vaucluse. The injuries are life-threatening. #SydneyHarbour #Vaucluse #sharkattack #Sydney | 7NEWS Sydney

Sharks have been swimming in Earth’s oceans for over 400 million years, long before the first dinosaurs appeared.​ In that time, our planet has gone through five major mass extinction events, wiping out up to 90% of life each time.​ Yet sharks survived them all.​ ​Their adaptability, varied diets, and ability to thrive in diverse marine environments helped them endure drastic changes in climate, sea levels, and ecosystems. Today, they remain one of the ocean’s most ancient and resilient predator