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April 12, 2017 — Part one in our new series to help you build your birding skills—and love of birds—by learning how to bird by ear.

April 12, 2017 — Part seven of our new series to help you build your birding skills—and love of birds—by learning how to bird by ear.

April 12, 2017 — Part two of our new series to help you build your birding skills—and love of birds—by learning how to bird by ear.

April 12, 2017 — Part five of our new series to help you build your birding skills—and love of birds—by learning how to bird by ear.

April 12, 2017 — Part six of our new series to help you build your birding skills—and love of birds—by learning how to bird by ear.

April 12, 2017 — Part eight of our new series to help you build your birding skills—and love of birds—by learning how to bird by ear.

April 12, 2017 — Part four of our new series to help you build your birding skills—and love of birds—by learning how to bird by ear.

April 12, 2017 — Part three of our new series to help you build your birding skills—and love of birds—by learning how to bird by ear.

April 12, 2017 — When Antarctic researchers found bones in an unusually smelly sediment core, they stumbled on evidence of how volcano eruptions shape ecology.

April 11, 2017 — An intrepid ����logo staffer beds down amid one of Earth's greatest migrations.