30 children at St Ives Harbour, Cornwall, panicked upon seeing a 10ft juvenile basking shark.

30 children swimming at St Ives Harbour, Cornwall, panicked and fled the water upon spotting a 10ft juvenile basking shark's dorsal fin. The harmless shark, which feeds on plankton, is the second largest fish in the world after whale sharks. Basking sharks were once hunted for their meat, fins, and liver oil but are now a protected species.