Sir David Attenborough says the superb lyrebird has one of “the most elaborate, the most complex, the most beautiful song[s] in the world.” In this episode we explore the incredible ability these creatures have to mimic sounds in their environment, ranging from predators and possums to squeaky trees and songbirds they compete with for forest habitat. Ornithologist Anastasia Dalziell joins us to discuss her trailblazing work with lyrebirds, and she plays amazing recordings of these spellbinding songsters.

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You might not think of beavers as remarkable, but they are actually brilliant ecosystem engineers whose dams mitigate flooding, improve water quality, and boost groundwater levels, and they also provide habitat for species like salmon, moose, and mink. Environmental journalist Ben Goldbarb joins us to discuss his fascinating new book putting a bright shine on beavers, Eager: The Surprising, Secret Life of Beavers and Why They Matter.

If you enjoy this podcast, please visit www.patreon.com/mongabay to pledge any amount to keep it growing. Mongabay is a nonproft media outlet, and everything helps. Thank you!

And please invite your friends to subscribe via Android, Google Play, iTunes, Stitcher, TuneIn, or listen via Spotify.