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Fossilised hyrax urine

Pictures
Middens are made up of layers of fossilised urine, built up over thousands of years, which can be over 2m tall. Image: Brian Chase
Rock hyraxes live in cliffs which can be difficult to get to, meaning it is less labour-intensive to use drones to collect images. Image: Brian Chase
Fossilised pollen can tell scientists how plants reacted to climate change in the past. Image: Kathy Willis
Driftwood fossils are telling scientists where ice used to be and how it has moved during the Holocene Era. Image: Dr Marc Macias-Fauria.