Should they be allowed to stay? A group of sneaky snakes from warmer climes is seeking refuge in insulated Welsh walls and lofts. Some say it should make us reflect on how our changing world is disrupting nature.
The wild snakes invading Welsh homes
Good neighbours: Aesculapian snakes seem to coexist happily with normal suburban wildlife, and there are no indications that their presence is affecting native species. Glossary
Sabres - A heavy sword with a curved blade that was used in the past by soldiers on horseback.
Adapted - Changed to fit in with new conditions.
Non-venomous - Does not produce venom – a poisonous liquid that can be put into another animal's body by biting or stinging.
Predators - Animals that prey on and eat other animals.
Serpentine - Of or like a serpent or snake.
Trespassers - People entering someone's land or property without permission.