The crested horn shark, which looks almost identical to the Port Jackson shark, is a major predator of Port Jackson shark eggs. They crush the eggs using their strong jaws, feeding off the rich yolk.

One of the most famous bullheads — and the largest — is the Port Jackson shark (Heterodontus portusjacksoni), an Australian species that can reach up to 5.4 feet (1.65 meters). Carpet sharks ...

An Australian diver came to the aid of a shark that had gotten pinned by a fishing line near Rye Pier, Victoria, on Friday, February 28. This footage was captured by Emily May, who said that she and ...

Nicolas Remy (Australia) records the moment a crested hornshark snatches a Port Jackson shark egg for a meal. Nicolas makes regular dives to document Port Jackson sharks. Approaching from a distance, ...