This bonus content is a reading from Platypus, the CASTAC Blog. The full post by Elexis Williams Gray can be read at https://blog.castac.org/2025/06/submarine-cyborgs-at-sea-with-haraway-and-jue/. About the post: The history of human relations with the Earth’s oceans and seas is an old one, set back into deep time. As long as humans have been living by the shores of this planet, we have found ourselves drawn to marine worlds and species, to the fluid enchantments of water, waves, salt, spray, submersion. However, it is only in recent decades that scholars have begun to consider that the ocean itself has a history. Drawing on the insights of scholars who have traced transformations in human-ocean relations over the course of the nineteenth and twentieth centuries, this piece opens a small window into my research examining the figuration of the midcentury scientific diver, considering representations of hybridity and cyborg embodiment witnessed in the “manfish” of Jacques Cousteau’s diving memoir The Silent World (1953), and a few relevant articulations (and critiques) of the submarine cyborg.