Stickleback fish need to find shade to stay out of sight from predators – but it’s something they can only do as a swarm. Iain Couzin studies the collective intelligence of these fish. He demonstrates how it works.
Rammstein singer Till Lindemann and his friend, the musician Joey Kelly, take their canoe up the Rio Yavari. A new book recounts their adventure.
Researchers found that more than 500 fish species can change their sex. Even for humans, sex is not always as clearly defined as we think.
There have always been mass strandings of whales and dolphins. Worldwide, about 2,000 marine mammals die in this way every year. But the phenomenon is not always due to natural causes.
Former Philippine ministers say China's artificial islands in the South China Sea have destroyed the environment and decimated coastal communities. They have filed a formal complaint with an international tribunal.
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