David Attenborough's Natural Curiosities Saison 2 Episode 10 en Streaming VF

David Attenborough's Natural Curiosities en streaming VOSTFR et VF

"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.