Helen James, the Curator-in-Charge of the bird collection at the National Museum of Natural History, is here to today to take our questions! Ask her whatever you want about extinct birds, bird evolution, and the secrets contained in the fossil record.

James has a doctorate in zoology from Oxford University. In addition to overseeing the museum's bird collection, James focuses her research on the fossil records of island birds, especially the Hawaiian islands. She also focuses on the evolutionary relationships between birds and the impact on birds of island ecology.

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She'll be here from 10:30 - 11:30 a.m. (Pacific time), so start asking her your questions about the stories behind extinction, what the fossil record tells us about biodiversity now and then, the collection at the National Museum of Natural History, and whatever else you want!