cocoon?

“One day, the caterpillar stops eating, hangs upside down from a twig or leaf and spins itself a silky cocoon or molts into a shiny chrysalis. Within its protective casing, the caterpillar radically transforms its body, eventually emerging as a butterfly or...

backdoor broadcasting

backdoor broadcasting is an amazing resource of audio material, in their own words – We are a mobile audio webcasting service, which concentrates on recording academic research.  We are hired by universities, learned societies and research institutes to record ...