By Ken Chan | Stanford, CA, USA

By Patty Fine | Springfield, Illinois, USA

By Frederico Lopes de Almeida | Brasilia, Distrito Federal, Brazil

By kevan hubbard | Teesmouth nature reserve, Co Durham, England

By Dirk Van Ingelgem | Heverlee, Leuven,Belgium

By John Benfatti | Gardiner, New York, USA

By Kannan A | Woodlands, Singapore

By Devi Singh Meena | Faridabad, Haryana, India

By Alexander Krivenyshev | New York, NY

By Procopius Canning | Port Saxon, Nova Scotia, Canada

By Diana Cottrell | Meade, KS, USA

By Marie Sager | Los Angeles, California

By Sheryl R Garrison | Southern Alberta, Canada

By Amanda Malloy | Northeastern Pennsylvania, USA

By albert poncedeleon | Carbondale, IL

By Michael Terhune | Lunenburg MA, USA