' The glow-worm lights her amorous fire '
But what sort of ' fire ' is it that produces light without heat? Why should the larvae, as well as the adults, be luminous? How are glow-worms affected by our brilliantly lit modern roadways?
Introduced by PETER FRANCE
Producer DILYS BREESE (from Bristol. Repeated: Wednesday,
9.5 am. Wildlife: Mon, 10.5 am)