On the Sussex Downs, Jules Hudson finds out how light pollution is wrecking prospects of romance for glow-worms and goes on a night-time safari to try to spot one glowing.
Discover 11,128,835 listings and 280,237 playable programmes from the BBC
On the Sussex Downs, Jules Hudson finds out how light pollution is wrecking prospects of romance for glow-worms and goes on a night-time safari to try to spot one glowing.