One of the largest colonies of gentoo penguins in Antarctica was decimated by volcanic eruptions several times during the last 7,000 years according to a new study. Together with an international team of researchers, led by British Antarctic Survey (BAS), experts of the Institute for Chemistry and Biology of the Marine Environment (ICBM) of the University of Oldenburg studied ancient penguin guano and found the colony came close to extinction several times due to ash fall from the nearby Deception Island volcano. Their results are published in Nature Communications. More only in German