Grassy biomes, including grasslands, savannahs and crops, cover over 40% of all land on Earth. They play a significant role in carbon and silica cycles and have a large impact upon the climate. Grasslands (grass-dominated ecosystems) have shaped the evolution of numerous groups of organisms, most obviously grazing mammals, and can support a huge amount of biodiversity. Humans evolved in the savannas and through domestication of grasses formed agriculture, leading to a modern diet dominated by grasses such as oats, rice, wheat and corn. As anthropogenic climate change threatens large scale uncertainty, it’s vital that we understand the controls that govern the success of this fundamentally important group. It is only by studying the evolutionary history of grasses that we might be able to predict how they will fare in future. Joining us in this episode to speak about the challenges of piecing together the evolutionary history of grasses from a relatively poor fossil record is Prof. Caroline Strömberg of the University of Washington.

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Episode 169: Grasslands Pt2

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