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Blue Planet III: Ocean Wonders & Climate Alarms
28 Oct
Summary
- Dolphins carry sea sponges to solve a mystery, revealed through persistent filming.
- Groupers, wrasse, and eels collaborate, showcasing interspecies cooperation.
- Coral bleaching serves as a stark alarm regarding rising global temperatures.

The beloved nature documentary series Blue Planet has returned for its third installment nine years after its predecessor. The new series opens with an exploration of tropical seas, presenting each segment as a compelling short story encompassing birth, death, survival, and innovation.
Recent scientific discoveries are highlighted, including bottlenose dolphins in Western Australia observed carrying sea sponges, a behavior meticulously documented to understand its purpose. The series also showcases remarkable interspecies collaboration, with groupers, Māori wrasse, and moray eels teaming up to hunt.
While celebrating the beauty and complexity of marine life, including surprising animal behaviors and visually stunning sequences, the documentary does not shy away from addressing environmental threats. It serves as an alarm bell for the climate crisis, with vivid depictions of coral bleaching underscoring the devastation caused by rising global temperatures.