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1The oldest gnathostome teeth by Plamen S. Andreev and othersthe-oldest-gnathostome-teeth-by-plamen-s-andreev-and-others2026-10-202026-10-20
1A lamprey from the Devonian period of South Africa by Robert W. Gess and othersa-lamprey-from-the-devonian-period-of-south-africa-by-robert-w-gess-and-others2026-10-202026-10-20
1The Late Precambrian fossil Kimberella is a mollusc-like bilaterian organism by Mikhail A. Fedonkin and Benjamin M. Waggonerthe-late-precambrian-fossil-kimberella-is-a-mollusc-like-bilaterian-organism-by-mikhail-a-fedonkin-and-benjamin-m-waggoner2026-10-202026-10-20
1Lower Cambrian vertebrates from south China by D.-G. Shu and otherslower-cambrian-vertebrates-from-south-china-by-d-g-shu-and-others2026-10-202026-10-20
1A primitive fish from the Cambrian of North America by Simon Conway Morris and Jean-Bernard Carona-primitive-fish-from-the-cambrian-of-north-america-by-simon-conway-morris-and-jean-bernard-caron2026-10-202026-10-20
1Tunicates and not cephalochordates are the closest living relatives of vertebrates by Frédéric Delsuc and otherstunicates-and-not-cephalochordates-are-the-closest-living-relatives-of-vertebrates-by-frederic-delsuc-and-others2026-10-202026-10-20
1Oxygen, ecology, and the Cambrian radiation of animals by Erik A. Sperling and othersoxygen-ecology-and-the-cambrian-radiation-of-animals-by-erik-a-sperling-and-others2026-10-202026-10-20
1The pectoral fin of Tiktaalik roseae and the origin of the tetrapod limb by Neil H. Shubin and othersthe-pectoral-fin-of-tiktaalik-roseae-and-the-origin-of-the-tetrapod-limb-by-neil-h-shubin-and-others2026-10-202026-10-20
1Polydactyly in the earliest known tetrapod limbs by Michael I. Coates and Jennifer A. Clackpolydactyly-in-the-earliest-known-tetrapod-limbs-by-michael-i-coates-and-jennifer-a-clack2026-10-202026-10-20
1New genomic and fossil data illuminate the origin of enamel by Qingming Qu and othersnew-genomic-and-fossil-data-illuminate-the-origin-of-enamel-by-qingming-qu-and-others2026-10-202026-10-20
11,2,3 = 2,3,4: A solution to the problem of the homology of the digits in the avian hand by Günter P. Wagner and Jacques A. Gauthier1-2-3-2-3-4-a-solution-to-the-problem-of-the-homology-of-the-digits-in-the-avian-hand-by-gunter-p-wagner-and-jacques-a-gauthier2026-10-202026-10-20
1Embryological evidence identifies wing digits in birds as digits 1, 2, and 3 by Koji Tamura and othersembryological-evidence-identifies-wing-digits-in-birds-as-digits-1-2-and-3-by-koji-tamura-and-others2026-10-202026-10-20
1Transcriptomic analysis of avian digits reveals conserved and derived digit identities in birds by Zhe Wang and otherstranscriptomic-analysis-of-avian-digits-reveals-conserved-and-derived-digit-identities-in-birds-by-zhe-wang-and-others2026-10-202026-10-20
1Evidence against tetrapod-wide digit identities and for a limited frame shift in bird wings by Thomas A. Stewart and othersevidence-against-tetrapod-wide-digit-identities-and-for-a-limited-frame-shift-in-bird-wings-by-thomas-a-stewart-and-others2026-10-202026-10-20
1A gigantic feathered dinosaur from the Lower Cretaceous of China by Xing Xu and othersa-gigantic-feathered-dinosaur-from-the-lower-cretaceous-of-china-by-xing-xu-and-others2026-10-202026-10-20
1More than 1000 ultraconserved elements provide evidence that turtles are the sister group of archosaurs by Nicholas G. Crawford and othersmore-than-1000-ultraconserved-elements-provide-evidence-that-turtles-are-the-sister-group-of-archosaurs-by-nicholas-g-crawford-and-others2026-10-202026-10-20
1A Middle Triassic stem-turtle and the evolution of the turtle body plan by Rainer R. Schoch and Hans-Dieter Suesa-middle-triassic-stem-turtle-and-the-evolution-of-the-turtle-body-plan-by-rainer-r-schoch-and-hans-dieter-sues2026-10-202026-10-20
1Evolutionary origin of the turtle skull by G. S. Bever and othersevolutionary-origin-of-the-turtle-skull-by-g-s-bever-and-others2026-10-202026-10-20
1The branching programme of mouse lung development by Ross J. Metzger and othersthe-branching-programme-of-mouse-lung-development-by-ross-j-metzger-and-others2026-10-202026-10-20
1Tip-cell migration controls stalk-cell intercalation during Drosophila tracheal tube elongation by Emmanuel Caussinus and otherstip-cell-migration-controls-stalk-cell-intercalation-during-drosophila-tracheal-tube-elongation-by-emmanuel-caussinus-and-others2026-10-202026-10-20

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Pinned article: Introduction to the OurBigBook Project

Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
Video 1.
Intro to OurBigBook
. Source.
We have two killer features:
  1. topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculus
    Articles of different users are sorted by upvote within each article page. This feature is a bit like:
    • a Wikipedia where each user can have their own version of each article
    • a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
    This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
    Figure 1.
    Screenshot of the "Derivative" topic page
    . View it live at: ourbigbook.com/go/topic/derivative
    Video 2.
    OurBigBook Web topics demo
    . Source.
  2. local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:
    This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
    Figure 2.
    You can publish local OurBigBook lightweight markup files to either OurBigBook.com or as a static website
    .
    Figure 3.
    Visual Studio Code extension installation
    .
    Figure 4.
    Visual Studio Code extension tree navigation
    .
    Figure 5.
    Web editor
    . You can also edit articles on the Web editor without installing anything locally.
    Video 3.
    Edit locally and publish demo
    . Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.
    Video 4.
    OurBigBook Visual Studio Code extension editing and navigation demo
    . Source.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact
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