predators

(Newser) - Scientists have identified the remains of the smallest dinosaur species ever found in North America, reports National Geographic. Hesperonychus elizabethae was a Cretaceous-era carnivore no bigger than a chicken, according to researchers. Scientists believe the existence of the Velociraptor cousin helps confirm that dinosaurs, not mammals, filled the role of...

(Newser) - As if polar bears in the North Pole didn't have enough to worry about these days: Scientists have found the bone of a young bear in the stomach of a Greenland shark, Reuters reports. The unprecedented discovery prompts a "million dollar question," says one researcher: Do the bears...

(Newser) - Officials in the Midwest are returning to a tried-and-true technique to fight invasive plants, the Chicago Tribune reports. Biological control uses natural enemies to rein in pests, and importing a tiny brown beetle in the 1990s brought under control a fast-spreading European weed, known as loosestrife, that was terrorizing agriculture....

(Newser) - At least half of India's Bengal tiger population has vanished in the last five years, according to the latest alarming census of the endangered predators. A Project Tiger conservationist blamed "poaching, and loss of quality habitat and prey," reports AFP. A 2002 survey estimated there were 3,700...