Overwhelming proof...

...that birds descend from dinosaurs. Ornithologists famously resisted the idea for decades, despite certain paleontologists' (like John Ostrom) insistence on the matter from the fossil evidence. I think perhaps pride got in the way - if you like and are interested in birds, you don't want these... newcomers, these bone-diggers having insight into your turf, nor do you want your feathered friends playing second banana to some monster from a Spielberg movie.

Nonetheless, the evidence has pointed this way for a long time, and the case began to get nearly irrefutable when find after find in China happened to be small theropod dinosaurs covered in what could only be described as feathers!

Now word comes that dinosaurs produced eggs in exactly the way birds do, and in a way that no living reptiles (even the related archosaurs, the crocodilians) do.

The Globe and Mail: Reproductive riddle unscrambled