Aly Baumgartner, Paleobotanist


What is your favorite part about being a scientist, and how did you get interested in science in general? I’ve been interested in science for as long as I can remember. My dad was working on his Master’s of Science in Biology when I was a kid and I loved going to class with him to look at cells under the microscope and helping him collect insects in the field behind our house. I got into paleontology specifically when I learned how common it was to find mastodon fossils in fields near my house. I wanted to find one of those mastodons! I love that as a scientist I still get to do these things that I loved as a kid.

What do you do? In undergrad I said that I majored in hugging trees and minored in playing in the dirt. I would say that’s still true. I use the size and shape of leaves to figure out the ancient temperature and precipitation (paleoclimate). I do this by studying modern plants and applying what I learn to fossil plants. Specifically, I use the size and shape of tropical African leaves to study the paleoclimate and environment in Kenya during the evolution of our early ancestors.

How does your research contribute to the understanding of climate change and evolution? I like to say that I am the context. As a paleobotanist, I study the ancient temperature, precipitation, and environment.What was the world like when our early ancestors were evolving. Was it hot or cold? Was it wet or dry? Was the landscape open or forested? Was there water nearby? Understanding this can help us understand the context of human evolution.


What are your data and how do you obtain them? Because I study both modern and fossil plants, I get data from a couple of different places. For modern leaves, I primarily use existing collections from herbaria. A herbarium is like a library of plants. For hundreds of years people have been pressing leaves, collecting seeds, and drying fruits and I can use these collections to understand the range of size and shape of leaves from tropical Africa. In addition, I study both previously collected fossil leaves as well as fossils I collected myself. This means that I’ve been lucky enough to spend a few months studying collections in the National Museum of Kenya as well as doing my own fieldwork.

 What advice would you give to young aspiring scientists? It’s okay to ask questions. Very often other people have the same question but are too afraid to ask.

It’s okay to ask for help. Asking for help is not a sign of weakness; it’s a sign of strength. Knowing what you don’t understand or can’t do alone shows that you understand what it takes. It’s okay to reach out to scientists that you admire. Scientists tend to be very excited to talk about their research and are happy to hear that people are interested! Scientists are humans too.

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