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Mark Siddall

ByMark SiddallThe Secret Life of Scientists and EngineersThe Secret Life of Scientists and Engineers

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“I’m very attached to leeches, and they’re sometimes attached to me.”


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Mark Siddall is a leech expert.  He finds the critters in Africa, in the Amazon, on hippo bottoms, and on himself.


Mark is a culinary adventurer specializing in flounder sushi, urchin testes, and seaweed custard.

The Bottom of Things

Mark Siddall hunts down a prize leech… inside a hippo rectum.

Culinary Adventurer

Mark Siddall cooks and eats wild and sometimes disgusting creatures.

30 Second Science with Mark Siddall

We give Mark Siddall 30 seconds to describe his science and he talks really fast.

10 Questions for Mark Siddall

We ask Mark Siddall 10 questions and learn about the last time he ate blood.

Blog Posts

Eating Wild
The Leechman Cometh
Ask Mark Your Questions


About Mark Siddall

Mark is Curator and Professor of Invertebrate Zoology at the American Museum of Natural History.

Original funding for "The Secret Life of Scientists and Engineers" was provided by the Alfred P. Sloan Foundation.