Parrots – Look Who’s Talking

File:Ara ararauna -eating -Wilhelma Zoo-8-2rc.jpg
Blue-and-yellow Macaw eating a walnut held by a foot

Parrots are birds of the roughly 372 species in 86 genera that make up the order Psittaciformes, found in most tropical and subtropical regions. The order is subdivided into three superfamilies: the Psittacoidea (‘true’ parrots), the Cacatuoidea (cockatoos) and the Strigopoidea (New Zealand parrots).Parrots have a generally pantropical distribution with several species inhabiting temperate regions in the Southern Hemisphere as well. The greatest diversity of parrots is found in South America and Australasia.

Jumping genes capture deep relationships between parrots and songbirds…

Figure 1 | Evolution of vocal learning in birds. [velociraptorise]

http://www.parrots.org/flyfree/

via Mission.

Hadrosaur phylogeny, as reconstructed for Halstead’s 1975 The Evolution and Ecology of the Dinosaurs. At this time, numerous forms now regarded as juveniles or variants were classified as distinct species. The phylogenetic relationships shown here haven’t stood up to scrutiny. Click to enlarge
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