A new study found around 150,000 penguins died after a massive iceberg crashed near their colony in Antarctica, forcing them to make a lengthy trek to find food.
The B09B iceberg, measuring around 100 square kilometres, grounded at East Antarctica in December 2010.
Nearby to the grounding lives a colony of Adelie penguins.
Scientists measured the population of the colony in February 2011 and again in December 2013. It dropped from 160,000 to just 10,000!
The iceberg’s grounding meant the penguins to walk more than 60 kilometres to find food.