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 #37 Clues

Intensive crest
Domoic acid toxicosis

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

California Sea Lion (Zalophus californianus)


This is the fancy name for the sea lions whiskers! They are used to feel both tactile and water vibrations. Sea lions are able to detect the 3-D shape of an object with their vibrissae.

Learn more.


Herschel was a very hungry, and very intelligent California sea lion who learned there was an easy and reliable supply of salmon at the Ballard Locks in Seattle. He taught others.

Learn more.

Intensive crest:

Zalophus, the sea lion genus derives from Greek, ‘za’ meaning intenstive, and ‘lophus’ meaning crest. This refers to the sagittal crest of the males of all male sea lions.

Domoic acid toxicosis:

Known as the ‘red tide’ this is produced by algae and it accumulates in shellfish and and fish. When those are eaten by sea lions it can cause lethargy, seizures and even death.

Learn more.

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