the Oldupai region was dominated by semi-desert plains. Analyses of sediments and fossil pollen show sparse vegetation, ...

Plants growing in arid and semi-arid habitats, such as desert, contain many unique components that enable them to adapt to extreme or stressful environments. Little is known about these plant ...

Far from being barren wastelands, deserts are biologically rich habitats with a vast array of animals and plants that have adapted to the harsh conditions there. Some deserts are among the planet ...