Science articles

Scientists uproot dinosaur family tree

For 130 years, dinosaurs have been classified as either bird- or reptile-hipped — the first and all-important split in the trunk of an intricate family tree.

Wastewater key to solving global water crisis: UN

Recycling the world’s wastewater, almost all of which goes untreated, would ease global water shortages while protecting the environment, the United Nations said in a major report on Wednesday.

New Zealand parrot has ‘infectious laugh’

Researchers have found that New Zealand’s kea parrot has the avian equivalent of an infectious laugh — a call that when heard prompts others to drop everything and have some fun.