German engineering firm Festo has created this flying manta ray. Dubbed the Air_ray, it’s a balloon made of an aluminum-vaporised “PET foil”. Inflated with helium, the Air_ray’s propulsion ...

The giant fish faces threats from poachers, boat strikes and climate change Photographs by Alex Mustard Text by Terence Monmaney After the manta ray filters ... Those plates, made of cartilage ...