Stories
Go behind the scenes at the San Diego Zoo, San Diego Zoo Safari Park, and across our Conservation Hubs worldwide to discover the conservation stories and successes you make possible for wildlife, people, and the planet we all share.
Slither in and connect with striking snakes at the San Diego Zoo and Safari Park
Cells vary in shape and function, and while some are enormous (the ostrich egg, the largest single cell in the animal kingdom, averages six inches long and weighs about three pounds), most cells can only be seen with the help of a microscope. The smallest object the human naked eye can see is approximately one-tenth of a millimeter (0.10 mm) in size—roughly the thickness of a piece of paper (0.15 mm), and the approximate diameter diameter of a Southern white rhino egg (0.14 mm). Let's zoom in and see how other cells measure up.
Ian Ingram, M.S., M.F.A., a conservation technology scientist for San Diego Zoo Wildlife Alliance (SDZWA) and leader of the Conservation Technology Lab, explores deep learning and its role in protecting wildlife.
Celebrating a pivotal moment for ʻalalā conservation and Hawaiian culture.