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...energy to protect the brain and skull when males use their heads as battering rams to compete over females. One reason this hypothesis is compelling is the great size difference between male and female whales. Sperm whales are the most sexually dimorphic of all cetaceans, with adult males reaching sizes three times larger than females. Among mammals, such size differences...

...energy out of the sea during storm surges and stabilise the coast against erosion under rising sea levels. All of these show how nature-based solutions can help urban environments adapt to climate change. Other cities are looking at how their natural spaces can mitigate the extent of climate change. In Durban in South Africa, the city government has worked with scientists...