Earth
Footage reveals threat to stunning Irish corals
The first ever video of Ireland's deep-ocean coral reefs is used to persuade the Irish government that the reefs need protection from trawlers
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The first ever video of Ireland's deep-ocean coral reefs is used to persuade the Irish government that the reefs need protection from trawlers
Box jellyfish are probably the most toxic creatures on Earth and put hundreds of people in hospital each year. Graham Lawton discovers the secrets of these sinister and bizarre killers