Although we are aware that the planet has limits, we find it difficult to live in a sustainable way. Our cognitive biases are partly to blame. So far, communication professionals have only reinforced them by creating a story about climate change that leaves us cold.

A congenital anomaly characterized by the presence of a single or partially divided eye has been described in many vertebrate species, including humans, and is sometimes associated with the presence of a proboscis. A new study analyses the embryonic origin of this malformation in a chicken embryo.