US moves to protect scalloped hammerhead sharks

The National Marine Fisheries Service is listing four distinct populations of a hammerhead shark species as threatened and endangered under the Endangered Species Act.

Feds mull Alaska's petition to delist humpbacks

Federal officials say a petition filed by the state of Alaska to remove some North Pacific humpback whales from protection under the Endangered Species Act merits a closer look.

Crews begin dismantling key California dam

For nine decades, the 10-story-high concrete dam with its rusted pipes, railings and valves has stood in the wooded canyons between the Big Sur hills and the picturesque town of Carmel, blocking the natural flows of the Carmel ...

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