Leto Sapunar is a freelance science journalist covering physics, space, climate and science accountability since 2020. He has been writing for Popular Science since early 2021, and his work can also be found in Scientific American, Inside Climate News and Retraction Watch, among other outlets.
Leto Sapunar
From this contributor
Pinning hope to ketamine
Doctors can prescribe it, but evidence that ketamine eases autism traits is still preliminary.
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Remembering Barbara Finlay, ‘maverick’ of evolutionary neuroscience
Finlay, who died on 12 September, championed the idea that developmental constraints dictate how evolution sculpts brains, a concept she used to model the timing of hundreds of events and align them across mammalian species.
Remembering Barbara Finlay, ‘maverick’ of evolutionary neuroscience
Finlay, who died on 12 September, championed the idea that developmental constraints dictate how evolution sculpts brains, a concept she used to model the timing of hundreds of events and align them across mammalian species.
By
Calli McMurray
23 October 2026 | 8 min read
Crows have brains ‘in the fast lane’
The birds accurately complete decision-making tasks twice as fast as primates, although their endbrains look considerably different.
Crows have brains ‘in the fast lane’
The birds accurately complete decision-making tasks twice as fast as primates, although their endbrains look considerably different.
By
Sarah Thau
22 October 2026 | 4 min read
Prevalence of profound autism declines with new definition
The updated, more precise definition used in a CDC study includes adaptive scores.
Prevalence of profound autism declines with new definition
The updated, more precise definition used in a CDC study includes adaptive scores.
By
Brianna Abbott
22 October 2026 | 5 min read