David M. Hillis's Avatar

David M. Hillis

@doublehelixranch.bsky.social

Evolutionary biologist, phylogeneticist, and owner of the Double Helix Ranch. Professor at University of Texas at Austin; Director of UT Biodiversity Center

315 Followers  |  102 Following  |  10 Posts  |  Joined: 20.11.2024  |  1.6685

Latest posts by doublehelixranch.bsky.social on Bluesky

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Distinguishing species boundaries from geographic variation | PNAS In an era of unprecedented biodiversity loss, the need for standardized practices to describe biological variation is becoming increasingly importa...

The question of how to distinguish species boundaries from intraspecific geographic variation is now more of an issue than ever in the genomic age. www.pnas.org/doi/10.1073/...

06.05.2025 04:22 — 👍 9    🔁 4    💬 0    📌 0

Congratulations to the newest members elected to the U.S. National Academy of Sciences in Evolutionary Biology today: Beth Shapiro, Fred Nijhout, and Jonathan Pritchard! Also International Member Valeria Souza from Mexico!

29.04.2025 18:48 — 👍 5    🔁 0    💬 0    📌 0
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"As long as I have any choice in the matter, I shall live only in a country where civil liberty, tolerance, and equality of all citizens before the law prevail.”—Albert Einstein

26.04.2025 19:02 — 👍 1    🔁 0    💬 0    📌 0
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Very interesting and important panel about how we can increase and facilitate distribution of all the new renewable energy production at #NAS162.

26.04.2025 14:30 — 👍 0    🔁 0    💬 0    📌 0
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Marcia McNutt discussing the importance of public engagement in science in her Presidential address at #NAS162.

26.04.2025 13:16 — 👍 1    🔁 0    💬 0    📌 0
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Congratulations to David Queller on his induction to the US National Academy of Sciences in Evolutionary Biology! #NAS162

26.04.2025 02:01 — 👍 34    🔁 5    💬 0    📌 0
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Congratulations to Ray Huey on his induction to the US National Academy of Sciences in Evolutionary Biology! #NAS162

26.04.2025 02:00 — 👍 20    🔁 2    💬 0    📌 0
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Congratulations to Adriana Briscoe on her induction to the US National Academy of Sciences in Evolutionary Biology! #NAS162

26.04.2025 02:00 — 👍 44    🔁 7    💬 0    📌 1
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It is warm enough on this late November day at the Double Helix Ranch for this Red-Striped Ribbon Snake to be swimming around, looking for Cricket Frogs.

24.11.2024 19:52 — 👍 4    🔁 0    💬 0    📌 0
Darwin's first thoughts about the Great Tree of Life, from his 1837 notebook.

Darwin's first thoughts about the Great Tree of Life, from his 1837 notebook.

Happy 165th birthday for the publication of The Origin of Species, and people thinking deeply about evolutionary trees. Darwin's notebook entry about phylogenesis, show here, is older, at 187 years, and became the basis for the only figure originally published in The Origin.

24.11.2024 15:50 — 👍 41    🔁 13    💬 2    📌 4

@doublehelixranch is following 20 prominent accounts