Boats

For four years, orcas have been ramming and sinking luxury yachts, and scientists finally have an idea why. No, it's not their anticapitalist 'eat the rich' agenda, nor is it to do with territory and aggression. The truth is, well, it's child's play.

An adventurous spirit landed German-born Alexander Wopper in the southern Chilean city of Valdivia 30 years ago, and it's that same spirit that emboldened him to breathe new life into the underused river that cuts right through its center.

A new generation of sail-equipped hybrid cargo ships could use up to 30% less fuel.

Scientists have devised a chemical method for recycling composite parts from discarded recreational boats.