“There are really interesting comparisons we can make between humans and bees, especially considering that we’re separated by over 600 million years of evolution from them. And yet we’re able to do similar things, sometimes in similar ways.”

Scarlett Howard, PhD
Alfred Deakin Postdoctoral Research Fellow
Deakin University in Melbourne, Australia

Dr. Scarlett Howard’s research on cognition of honeybees got a lot of media attention when in 2018, she published a paper that showed bees can understand the concept of zero. How Scarlett came to prove this is one of the things we discuss in this episode. The importance of zero is a topic we cover in this same episode with help from Faruck Khan, a mathematician who teaches at the University of Chicago Laboratory Schools.

Scarlett is currently working on understanding the effect of urbanization on native and introduced bee species in Australia. Is the presence of people possibly beneficial to some bees? Detrimental? No one yet knows. Her research explores conceptual learning, neurobiology, and visual perception in honeybees as well as insect diversity, pollinator preferences, and plant-pollinator interactions.

How to Find Out More About Bees & Zero

“It’s been said that the development of an understanding of zero by society initiated a major intellectual advance in humans, and we have been thought to be unique in this understanding. Although recent research has shown that some other vertebrates understand the concept of the ‘empty set,’ Dr. Howard’s work shows that an understanding of this concept is present in honey bees. This finding suggests that such an understanding evolved independently in distantly related species that deal with complexity in their environments, and that it may be more widespread than previously appreciated.” So says a 2018 article in Science Magazine that put Scarlett and her work on the map. It’s one of the better places to glean details about the experiments and results. For a less technical rendition, see the article from the New York Times or this one from Quanta Magazine.

In the full interview, Scarlett emphasized that she isn’t working in isolation. Other scientists are working on bee cognition; Dr. Adrian G. Dyer is one of several close collaborators, and the team also includes behavioral researchers, statisticians, color and vision scientists, photographers and theoretical physicists.

How to Find Out More About Scarlett Howard’s Work

To keep up with new information coming out of Scarlett and her colleagues’ work, follow her on Twitter. @TheBeesearcher.

How to Help Scarlett Howard in A Community Science Project

If you live in Australia, check out Bees At Home, a citizen science effort where you upload photos of bees you see out in the wild or in your backyard to Flickr using the hashtag #beesathome. In Australia there over 2,000 species of native bee species yet relatively little is known about them. Each bee photo is a data point that helps Scarlett and her colleagues uncover more information about native bee behavior and distribution. You can follow Bees at Home on Twitter @BeesAtHomeAus, and Facebook.

Here we see a female bee confronting the Existential Void of Nothingness. Or perhaps in this photograph, she’s actually being caught right in the midst of figuring out Scarlett’s math problem. The bee might be thinking, “Is something with no spots upon it at all representing a number that’s smaller than a card that has spots? Or is this something else entirely? Can ‘nothing’ be considered ‘less than,’ or is this a blank slate utterly without meaning?”
This is what the math experiments look like. Bees see cards with different amounts of spots on them and are rewarded with sugar water for choosing the correct answer. Here, they’re learning to discriminate between lower and higher quantities.
Lasioglossum lanarium, a species of bee native to Australia. Scarlett Howard works with honeybees for the math experiments, but is interested in learning more about Australia’s native bees as well. Honeybees aren’t native—in fact, they’re a domesticated species.
Bees At Home is a community science competition to map native bees across Australia. People send in photos and win prizes.

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