Tiger

Fossils tucked away in a museum drawer and identified merely as "feline" are actually from a very ancient and enigmatic saber-toothed cat that inhabited North America more than 5 million years ago. Newly identified by a UC Berkeley paleontologist, the nearly complete skull helps clarify how these large-fanged felines evolved over millennia before going extinct about 10,000 years ago.

The tropical rainforests of Central and South America are among the most biodiverse places on Earth. Costa Rica alone is home to half a million species, five times more than exist in the entire country of Canada, despite the former having 200 times less land area than the latter.

Patterns reveal the individual: A novel AI algorithm equips researchers with a powerful new tool to accurately identify individual jaguars, zebras and giraffes in real time based on their unique coat patterns. Biologists and ecologists can now observe individual wild animals as they move from place to place, as well as their behavior and development over long periods, accurately, with much less effort and significantly faster than before—a major step forward for nature conservation. The […]

Inside a factory in southern France, millions of tiger mosquitoes are being bred, not to spread, but to stop them from reproducing—though scaling up such efforts poses a mighty challenge.

Growing up in Tahiti, Anna-Bella Failloux saw firsthand the threat posed by mosquitoes: Nearly a third of adults on the picturesque island once had swollen limbs from elephantiasis caused by their bites.