Blue heaven

The common toad has always enjoyed a special place in our national imagination, but its numbers have been declining alarmingly in recent decades. What can be done? Sarah Langford investigates

Squinting, it looks like a piece of popcorn. It’s hard to imagine this tiny orb could be a lifeline for coral reefs around the world. “That will have maybe eight or 12 eggs,” says Dr Jamie Craggs as I

Three remarkable species to spot in March.

Nadia Shaikh goes synaesthetic for the start of spring, almost tasting the orange tang of an early butterfly

After stumbling on this archive, Keith talks about his experiences with maggot colours

Find out which early species to watch for, how to make your patch more butterfly-friendly and where to record your sightings for science