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.

Follow me on Twitter to play #StreetCreatures live every Friday at 9am PST.

Quiz #20 Clues

Gnathal pouch
Harvestmen glue
Primary granules
Antifreeze protein

Answer (Don't click until you've solved it)

Springtail (Collembola)

Gnathal pouch:

Part of springtail anatomy that encloses the mouthparts (maxillae and mandibles).

Harvestmen glue:

Harvestmen, prey on springtails, often larger than themselves. They make use of secretions from their pedipalps to trap their prey in a glue.

Learn more.

Primary granules:

To a springtail, getting wet means drowning, so they have multiple layers of defenses to keep dry: bristles and primary and secondary granules, which create air-filled cavities to keep dry.

Antifreeze protein:

You may have heard of ‘snow fleas’, which are actually springtails. They have a trick to living in the cold, a glycine-rich antifreeze protein that bind to ice to prevent it growing.

Learn more.

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