Across the planet, scientists are observing ecosystems lose the colours that once defined them. Coral reefs turn ghost-white during marine heatwaves, their once-fluorescent pinks, greens and blues dra

How dead plants and animals decay, and how living organisms rely on this natural process to survive

Adrian Thomas pieces together the garden ecosystem

For a couple of years, Inky the octopus was a popular attraction at the National Aquarium of New Zealand in Napier. Then, one morning in 2016, his tank was empty. Inky had made a daring break for free

One animal’s loss is a gain for hungry creatures with a taste for decay

Seeking answers to your science questions? Ask our resident expert, Peter Gallivan