Changes threaten biodiversity and drinking water quality
Oxygen levels in the world’s temperate freshwater lakes are declining rapidly — faster than in the oceans — a trend driven largely by climate change that threatens freshwater biodiversity and drinking water quality.
Discovery of ancient plant fossils offers clues to the origin of flowering plants
Flowering plants, or angiosperms, dominate most terrestrial ecosystems and are a major food source for humans. However, their origin has been a mystery since the earliest days of evolutionary thought.
Angiosperm flowers are diverse and contain unique structures not …
