Guess the Cover of American Laboratory—April 2013

Correctly identify this month’s cover image and be entered to win a $10 Amazon gift card (one entry per person; you must be 18 years of age to be eligible. See contest rules at

Hint: When ingested, this organism can cause mild to severe illness. If you find some in your kitchen, you would be well-advised to throw it away. The good news is that some well-known pharmaceuticals have been derived from it. What do you think it is?

What do you think it is? Enter by leaving your answer in the comments section below. Stay tuned for the answer and for next month’s cover image! See Answer