Přírodní kuriozity Davida Attenborougha / David Attenborough's Natural Curiosities 2013

18.3.2014 | Magical Appearances

Obsah epizody

"Magical Appearances" explores how swallows magically appear each spring and asks how did complex and beautiful insects like butterflies suddenly arrive in the summer. The discovery of the swallow’s epic migration and the revelation that butterflies could metamorphose into totally different looking adults were scientific stories both cloaked in mystery and controversy.

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