A two day-old twin zebrafish embryo with one shared yolk and tail but two fully developed heads touching each other at the nose.

    • Ingrid Lekk, Dr Steve Wilson

    Licence: Attribution 4.0 International (CC BY 4.0)

    Credit: A two day-old twin zebrafish embryo with one shared yolk and tail but two fully developed heads touching each other at the nose. Ingrid Lekk, Dr Steve Wilson. Source: Wellcome Collection.

    no text alternative