Inside the world of tiny phytoplankton – microscopic algae that provide most of our oxygen

By Abigail McQuatters-Gollop, Associate Professor of Marine Conservation, University of Plymouth

Phytoplankton are microscopic algae living throughout the ocean’s surface waters. They can’t swim and are at the mercy of the currents and tides. Despite their small size, phytoplankton enable life in the oceans – and throughout the planet – to exist.

There are two types of plankton – zooplankton, which are animals, and phytoplankton, which are algae. Phytoplankton are filled with chlorophyll which gives them a green colour, just like land plants. And like land plants, phytoplankton play a critical role, converting carbon dioxide and energy from the sun into food through photosynthesis,…

Read complete article

~	How can we have truth-telling without the Voice? Our research shows a way forward

~	NZ education scores must improve – but another polarising ideological pivot isn’t the answer

~	What is romantasy? Our experts explain the bestselling book trend

~	What does Steve Smith’s Stateside signing mean for cricket in the US – and Australia?

~	Australia’s new defence strategy is big on ideas, but lacks one key ingredient: well-trained soldiers

~	Transform landmark Indigenous rights declaration into reality: UN General Assembly President

~	Poui season in Trinidad & Tobago is a timely reminder of beauty and hope

~	Why the kookaburra’s iconic laugh is at risk of being silenced

~	First evidence of ancient human occupation found in giant lava tube cave in Saudi Arabia

~	What are ‘Ozempic babies’? Can the drug really increase your chance of pregnancy?