Is nature turning on us? A dramatic video of a Hawaiian fisherman’s meeting with a shark shows just how powerful animals can be.
Attack! Tiger shark rams terrified kayaker

Glossary
Hawaii - Situated in the Pacific Ocean, it was made a US state in 1959 and is the only island state.
Kayak - A type of canoe, propelled by a human with a paddle.
Florida - A coastal state in the south-east of the US, between the Atlantic Ocean and the Gulf of Mexico. Though nicknamed "the sunshine state", it also experiences phenomenal rainstorms.
Climate change - Long-term shifts in temperatures and weather patterns. Human action is a major cause of climate change.