Emperor penguins adults and chick (IMAGE) Woods Hole Oceanographic Institution Caption New research that incorporates very high resolution (VHR) satellite imagery with field-based validation surveys and long-term data has provided the first multi-year time series that documents emperor penguin global population trends. Credit Credit: Jean Pennycook Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.