Chemicals from buried dung in lake sediments indicate their presence and reveal their ecological impacts. A recent analysis of chemicals preserved in lake sediments reveals that large herbivores, such ...
Chromosphaera perkinsii is a single-celled species discovered in 2017 in marine sediments around Hawaii. The first signs of its presence on Earth have been dated at over a billion years, well before ...
Large herbivores like bison or elk have continuously lived in the Yellowstone National Park region for about 2,300 years, according to a new analysis of chemicals preserved in lake sediments.