Yale Peabody Museum Natural Science Illustration Program

Dorie Petrochko • December 31, 2024

September 2024 marks the fifteenth year of the Yale Peabody Museum’s Natural Science Illustration Program. The program was launched in 2009 by four professional artists and members of the Guild of Natural Science Illustrators: Cindy Gilbane, Susannah Graedel, Dorie Petrochko, and Jan Prentice.



Eastern painted turtle (Chrysemys picta). Watercolor. © 2024 Haley Grunloh

Eastern painted turtle (Chrysemys picta). Watercolor. © 2024 Haley Grunloh 


George Catlin, Máh-to-tóh-pa, Four Bears, Second Chief, in Full Dress, 1832, oil on canvas, 29 x 24 in. Smithsonian American Art Museum

Founders and instructors of the Yale Peabody Museum’s Natural Science Illustration Program. Bottom row: Jan Prentice, Dorie Petrochko. Top row: Linda Miller, Susannah Graedel, Cindy Gilbane.



Students practice painting feathers. © 2024 Yale Peabody Museum Natural Science Program

    Students practice painting feathers. © 2024 Yale Peabody Museum Natural Science Program 



Violet-tailed sylph hummingbird (Aglaiocercus coelestis). Colored pencil on Dura-Lar® film. © 2024 Marylou Connolly

Violet-tailed sylph hummingbird (Aglaiocercus coelestis). Colored pencil on Dura-Lar® film. © 2024 Marylou Connolly 


Three of our founders earned their certificates in Botanical and Natural Science Illustration at the New York Botanical Garden. Dorie, Linda, and Jan were also long-time Peabody volunteers which led to their eventual collaboration with the museum. Classes were originally taught at the museum in New Haven and then at Yale’s West Campus Educational Center in Orange, Connecticut. In more recent years, the program has grown to include students from 38 U.S. states and 12 countries, as well as 16 instructors.

Painted bunting (Passerina ciris). Colored pencil on paper. © 2024 Pamela Riddle

Painted bunting (Passerina ciris). Colored pencil on paper. © 2024 Pamela Riddle 


Classes have always been natural science–based, and students of all levels of ability are encouraged to participate. The program offers both online and in-person classes including Drawing, Watercolor, Colored Pencil, Pen and Ink, Mixed Media, Drawing and Painting Birds, Insects, Gems and Minerals, Vertebrate Anatomy, Plant Morphology, Digital Illustration, Marketing for Artists, Composition and Design, and others. Students taking classes at the museum may take advantage of the opportunity to use museum specimens from the Peabody’s vast collections as inspirations for their work. 

Classes are challenging and the results are impressive. The program enjoys a large following of students, many of whom have previous art or science backgrounds. One student commented, “Each course has nudged me beyond what I thought myself capable of. I cannot say how valuable and important this program has become in my life.” 


Learn More about Yale Peabody Museum’s Natural Science Illustration Program at peabody.yale.edu/education/adult-programs/nsi 


Bee balm (Monarda didyma). Colored pencil on Dura-Lar film. © 2024 Ally Alloway

Bee balm (Monarda didyma). Colored pencil on Dura-Lar film. © 2024 Ally Alloway 


Indian corn. Digital rendering. © 2024 Kim Burris

Indian corn. Digital rendering. © 2024 Kim Burris 



Death's head hawk moth (Acherontia atropos). Colored pencil on Dura-Lar film. © 2024 Mary Kwok

Death's head hawk moth (Acherontia atropos). Colored pencil on Dura-Lar film. © 2024 Mary Kwok 


Rosa double delight (Rosa sp.). Colored pencil on Stonehenge® paper. © 2024 Gabriela Esteva



Sioux quartzite, selenite crystal, and copper ball. Graphite. © 2024 CJ Rocky

Sioux quartzite, selenite crystal, and copper ball. Graphite. © 2024 CJ Rocky 


Figure 6: Nest. Pen and ink. © 2024 Amy Brownstein 


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