By Frank Lu | Arlington, Texas, USA

By GREG REDFERN | Shenandoah National Park, VA

By Elaine Embree | Maryville, Tennessee, U.S.A.

By Lorraine Boyd | Delmar, NY USA

By Cecille Kennedy | Pirate Cove Research Reserve, Oregon US

By Aurelian Neacsu | Visina, Dambovita, Romania

By Mohamed Mohamed | Libya,Tripoli

By Sushil Sibakoti | Kathmandu, Nepal

By Steve Mullensky | Port Townsend

By Salil Kawli | Pune Maharashtra

By Greg Diesel Walck | Tomoka Aquatic Preserve - FL

By Raul Cortes | Oslo, Norway.

By Jelieta Walinski Ph.D | Northern Minnesota, USA

By Christin Swearingen | Fairbanks, AK, USA

By Niccole Neely | Phoenix, AZ

By Chix RC | Torrance, CA