Systematic position of Archaeopteryx challenged?

Archaeopteryx has been considered the most primitive and earliest known bird ever since its discovery, and has been placed at the base of Avialae in nearly all numerical phylogenetic analyses. In 2011, a parsimony-based phylogenetic ...

A brief guide to birdwatching in the age of dinosaurs

Have you ever wondered what it would be like travel back in time to the age of dinosaurs? If you stumble upon a time machine, remember to bring your binoculars. Birdwatching is a popular hobby today, with an around 3 million ...

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