A sharp plunge in ocean calcium levels may be the missing link in Earth’s long transition from a hot, dinosaur-era greenhouse ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. The ocean’s ultimate predator once hunted whales with ease.

Add Yahoo as a preferred source to see more of our stories on Google. Almost 12 years after Malaysia Airlines Flight 370 vanished over the Indian Ocean with 239 people on board, the search for the ...