Sandplain grasslands, a kind of East Coast prairie, are some of the rarest habitats in the world, and sheep-grazing may be key to their survival.
Island ecosystems are precious, precarious beasts, easily overwhelmed by nature's hardiest predator: goats.
Mute swans are the poster child for a harmful species protected by strong public goodwill.
Tracing the remarkable diversity of the early amphibians, creatures that spanned the globe and preceded the age of dinosaurs.
Ambergris, a waxy-like substance found in perfumes, has a unique origin.
Whales are an important part of ocean biodiversity. So is their poop.
How could the era have supported such massive herbivores?
Research suggests that the apatosaurus' tail was an impressive appendage.
We look at the current global coral bleaching event, possibly the worst in recorded history.
The answer may surprise you.