GREEN PORNO - Isabella Rossellini - animal sexual behaviour series

Green Porno is a series of short films on animal sexual behaviour. The series, which began in 2008 and aired on The Sundance Channel, is conceived, written, and directed by its star, Isabella Rossellini.
the Italian actress and model wants to show you how animals seduce each other.

http://en.wikipedia.org/wiki/Green_Porno
http://www.sundancechannel.com/greenporno/

Green porno DUCK

Green Porno - DEER

Green Porno - MANTIS

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Sexy Science - Golden Tortoise Beetles

wikipedia ,

More than 30 years ago, golden tortoise beetles became the first known insect species with the ability to rapidly change colour during copulation.
golden tortoise beetle copulation could last anywhere between 15 to 583 minutes, they would change colour as quickly as two minutes into it. This color change is accomplished by microscopic valves controlling the moisture levels under the shell.  more ...  scientificamerican . 

google photos - golden tortoise beetle