News
- Life
Dark coats may have helped the earliest mammals hide from hungry dinosaurs
During the age of dinosaurs, early mammals probably lacked the stripes and spots of their modern relatives, having uniformly dark, drab coats.
- Archaeology
These ancient Maya-era puppets may have been used in rituals
The puppets, unearthed in El Salvador, have movable heads, strange facial expressions and may have been dressed for ritual roles.
- Chemistry
A new iron compound hints ‘primordial’ helium hides in Earth’s core
Earth’s core could contain helium from the early solar system. The noble gas tucks into gaps in iron crystals under high pressure and temperature.
