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On the threshold of flight

10,000 Birds

Soon after carnivores that could hunt on land evolved, things like ancestral centipedes. Science 12 December 2014: 346 (6215), 1253293 [DOI:10.1126/science.1253293]. A better understanding of bird origins requires multifaceted and integrative approaches, yet fossils necessarily provide the final test of any evolutionary model.

Rodents 242
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Our Best Birds of 2020

10,000 Birds

The closest I’ve ever come to breaking that run was in 2014, when I only had six lifers all year. I also put it to a worthy first field test on December 29th during a successful twitch of an Arctic Diver that had turned up at a small lake right next to Heidleberg.

2020 264