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Plastic trash on San Francisco’s Ocean Beach. Kevin Krejci

Bait and switch: Anchovies eat plastic because it smells like prey

A new study shows that anchovies – key food for larger fish – are attracted to plastic trash because it smells like food. This suggests that toxic substances in plastic could move up through food chains.
Giant kelp can grow up to 60cm a day, given the right conditions. Joe Belanger/shutterstock.com

How farming giant seaweed can feed fish and fix the climate

In an extract from his new book, Tim Flannery explains how giant kelp farms could suck carbon dioxide from the air and store it in the ocean’s depths, while encouraging species like fish and oysters.
Great white photobomb. George T. Probst/NOAA/Flickr

Ocean life: 5 essential reads

The world’s oceans are home to innumerable life forms, from sponges to sea lions, and scientists have many creative ways of studying them.
Furious winds keep the McMurdo Dry Valleys in Anarctica free of snow and ice. Calcites found in the valleys have revealed the secrets of ancient subglacial volcanoes. Stuart Rankin/Flickr

Volcanoes under the ice: melting Antarctic ice could fight climate change

Melting ice from Antartica could feed vast plankton blooms, trapping carbon in the ocean. To understand this complex mechanism, researchers looked at volcanoes deep under glaciers.
A shark’s nose is chemosensory only, and it doesn’t join up to the back of the throat like ours does. Flickr/Leszek Leszczynski

Curious Kids: Do sharks sneeze?

Sharks can’t sneeze like we do, but they can do other cool tricks – like making their stomach stick out of their mouth to get rid of unwanted stuff.
The researchers found nearly 38 million pieces of plastic rubbish on Henderson Island, in one of the remotest parts of the ocean. Jennifer Lavers

This South Pacific island of rubbish shows why we need to quit our plastic habit

Plastics pose a major threat to seabirds and other animals, and most don’t ever break down - they just break up. Every piece of petrochemical-derived plastic ever made still exists on the planet.

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