In praise of laziness
The pandas' eye-catching colour is actually a highly efficient camouflage
Radiocarbon dating says Machu Picchu is older than we think
Our ancestors walked upright as early as 7 million years ago, study suggests
Human cartilage projected into space for the first time
Astronomers discover the smallest star ever observed
The 4 most promising solar system worlds for microbial life
Seneca in the face of death
Arctic hare covered 388 kilometers in a record journey
The 5 largest religions in the world (and their history in Brazil)
Terraplaners needed rescue after failed deep sea mission
More than 25 thousand species of flora only exist in Brazil, study shows
The mantis shrimp fights fiercely to steal burrows from rivals
