Sea urchins eat kelp – but new research shows their diets and relationships with kelp forests are more complex than commonly thought.

While they wouldn’t normally be caught dead together, Pauline Hanson, Fatima Payman and Dai Le have held a joint press conference to take aim at the prime minister.

Trypophobia is more than an internet meme. It is a genuine psychological experience that can range from mild discomfort to significant distress.

This year’s El Niño is likely to be the strongest on record. That would boost some fruit supplies – but it could also push up wheat, sugar and beef prices.