Adorning the walls of San Ildefonso College in Mexico City is artist Diego Rivera's masterpiece, rendered in fresco and gold ...

A large study found female songbirds often die younger than males, with migration and survival differences likely playing important roles.

AI agents open-ended research hit a wall in a Princeton shadow evaluation: frontier models given $3,000, six days, and real ...

Introduction Afghanistan has experienced decades of war, political instability, displacement, poverty and structural upheaval, all of which are likely to have contributed to the population’s ...

New fossil evidence suggests Homo erectus babies arrived just as helpless. Compared with other great apes, our children arrive underbuilt. They have weak neck muscles, soft cranial bones and brains ...