Scientist Steve Simpson uses a multi-directional hydrophone to record the sounds of the coral reef.
Scientists have recently discovered that many fish on the reef rely on sound at key stages in their life - and that man-made noise is interfering with this.

Scientist Steve Simpson uses a multi-directional hydrophone to record the sounds of the coral reef. Scientists have recently discovered that many fish on the reef rely on sound at key stages in their life - and that man-made noise is interfering with this.

Friday, Mar 02 12 p.m. (ET)

Trump, Republicans And The Conservative Movement And Documenting The Majesty Of The Earth’s Oceans

The state of the conservative movement and where it goes from here. Then, the watery worlds revealed in BBC America's Planet Earth: Blue Planet II.

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