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

PESTS & DISORDERS

Bringing you some of the gardening news highlights

Give your pond a spruce up before frogs start spawning and aquatic insects such as pond skaters return. Remove duckweed and algae, leaving it beside the pond for a few hours so invertebrates can crawl

ONE OF THE most mesmerising spectacles in the animal kingdom, is a group of fish swimming in unison. Almost as though they are a single entity, these synchronised fluid formations appear like choreogr

Clouds of noxious gas, stink bombs and purple smokescreens may sound like schoolboy pranks, but the animal world is just as capable of executing arresting chemical warfare, says Deborah Nicholls-Lee