Hummingbirds in the Peruvian Andes enter a state of torpor at night to conserve energy, dipping their body temperature to as low as 38 degrees Fahrenheit. Christopher Intagliata reports. -- Read more on ScientificAmerican.com
The percentage of public school bio teachers who present it as the broad consensus view among scientists—without presenting the creationist “alternative”—has increased... -- Read more on ScientificAmerican.com
The finding of a baby dinosaur fossil in the Arctic implies that some dinos nested in the region, which was milder than today but not toasty. -- Read more on ScientificAmerican.com
An analysis of 391 skulls shows that birds evolved surprisingly slowly, compared with their dinosaur forerunners -- Read more on ScientificAmerican.com
Researchers found extra bones within a 240-million-year-old ichthyosaur fossil—which they determined to be the ichthyosaur’s last, possibly fatal meal. Christopher Intagliata reports. -- Read more on ScientificAmerican.com
Butterflies, fish and frogs sport rear-end eyespots that reduce predation. Painting eye markings on cows similarly seems to ward off predators. -- Read more on ScientificAmerican.com