Bull shark 'baby food' under extreme threat

Juvenile bull sharks generally remain inside rivers, sheltered by mangroves while they are young and more vulnerable to predators, before moving out into coastal habitats. Until now, scientists assumed they relied on these ...

California leads effort to let rivers roam, lower flood risk

Between vast almond orchards and dairy pastures in the heart of California's farm country sits a property being redesigned to look like it did 150 years ago, before levees restricted the flow of rivers that weave across the ...

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