What is Street Creatures? This is the game I run on Twitter every Friday. I’ve
collected all the past quizzes here in one place so you can either relive them, or play
them for the first time.
How does it work? Provided are four, seemingly unrelated clues, that are all
connected by a wild organism that can be found in a city. Look at the four clues,
do some research, and when you think you’ve figured it out, click on ‘Answer’
to reveal what connects the clues, and how they are connected.
Cladonia sp. lichen
After the Chernobyl explosion, caesium 137 levels in lichens were 165 times higher than previously recorded. The reindeer, of course, ate the lichens and it accumulated in their system, and entire herds had to be disposed of.
Cladonia species frequently spread by being fragmented. Reindeer actually play a role in that as they walk across and break pieces off the lichens.
Cladonia species are frequently used in model building – both on model railroads and also for architectural models. A fact I wish I’d known when I was in landscape architecture school!