
Madeline St Claire
Marine biologist, wildlife filmmaker and founder of Women in Ocean Science — a British coral reef scientist turned conservation storyteller and expedition leader.
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Aug 10, 2026
Mads St Claire on the secrets of our underwater worlds
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Madeline St ClaireGUEST
Um, which is, you know, how earlier I referenced the coral has an algae inside its tissue, and that's what makes it colorful.

Madeline St ClaireGUEST
When it gets too hot, uh, the coral actually expels the algaes from its tissue in a response to the heat, which is why we call it bleaching.

Madeline St ClaireGUEST
Because with all that color pigment gone, it's just flesh and bone, that calcium carbonate skeleton underneath.

Madeline St ClaireGUEST
Um, and so the first, uh, coral bleaching event that I experienced was then, uh, so my first ever introduction to the coral reef world was during, uh, that first bleaching event for me, fourth one... a third one in the world.

Madeline St ClaireGUEST
Uh, and then most recently, in the last two-ish years, year and a half, um, we've had the fourth global mass bleaching event, and it's been even more destructive.
A
22:11Amy ChapmanHOST
Um, but yeah, I'd love to hear more about the work you do and the importance of making women's voices heard.