Uploaded June 2025 | Updated September 2026, 1 week ago
A micro-evolutionary event becomes a major macro-evolutionary distinction in 600 million years.
Let's talk about a familiar story in evo-devo: how vertebrates and invertebrates use the same molecules to define the dorsal-ventral axis of the embryo, except that they are reversed between the two.
The paper:
De Robertis EM, Tejeda-Munoz N (2022) Evo-Devo of Urbilateria and its larval forms. Developmental Biology 487:10-20.
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A micro-evolutionary event becomes a major macro-evolutionary distinction in 600 million years.
Let's talk about a familiar story in evo-devo: how vertebrates and invertebrates use the same molecules to define the dorsal-ventral axis of the embryo, except that they are reversed between the two.
The paper:
De Robertis EM, Tejeda-Munoz N (2022) Evo-Devo of Urbilateria and its larval forms. Developmental Biology 487:10-20.
Email: pzmyers@gmail.com
Blog: freethoughtblogs.com/pharyngula
Patreon: patreon.com/pzmyers
Mastodon: https://freethought.online/@pzmyers
Bluesky: https://bsky.app/profile/pzmyers.bsky.social
Instagram: instagram.com/pzmyers
