I do not think there are insects on Mars. The photographs that are in that press release you sent are entirely unconvincing, as they fall within the range expected in zillions of non-insect objects photographed in lowish resolution on a Marscape," Maddison said. "It is vastly more parsimonious to presume the blobs are simply rocks. As has been said, 'extraordinary claims require extraordinary evidence'; those pictures are far, far less than extraordinary.