Archive
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.
SAN DIEGO (May 14, 2024) – Today San Diego Zoo Wildlife Alliance hosted a “Toss the Tusk” event at the San Diego Zoo to raise awareness about the elephant poaching crisis and illegal elephant ivory trade. The event, organized by the Association of Zoos and Aquariums’ Wildlife Trafficking Alliance (AZA WTA) and the U.S. Fish and Wildlife Service (USFWS), encouraged the public to support long-term conservation efforts by surrendering unwanted elephant ivory items—including jewelry and art pieces—to ensure their availability does not drive demand. By removing elephant ivory products from the market, we can help keep these majestic animals alive for generations to come. This is the second year in a row that San Diego Zoo Wildlife Alliance has hosted a Toss the Tusk event. In 2023, it was held at the San Diego Zoo Safari Park.
For the herd of elephants at the San Diego Zoo Safari Park, family isn’t just the main thing. It’s everything.
SAN DIEGO (Aug. 10, 2023) – San Diego Zoo Wildlife Alliance has announced construction is officially underway on the largest and most transformative project in the San Diego Zoo Safari Park’s 50-year history. The all-new Denny Sanford Elephant Valley will reimagine the heart of the Safari Park, turning the current elephant environment into a dynamic savanna and a place of exploration. Elephant Valley will give guests of all ages the opportunity to connect with elephants like never before, encouraging greater empathy, understanding, and appreciation of this majestic species—and igniting a passion for wildlife.
SAN DIEGO (May 11, 2023) – From Arabian oryx to Nubian ibex, to spotted turtles and Amur leopard cubs, the San Diego Zoo and Safari Park are brimming with babies! A spring baby boom provides guests to both the Zoo and Safari with the opportunity to see and learn about amazing wildlife including an okapi calf, a Matschie’s tree kangaroo and Przewalski’s horse at the Safari Park and Andean bear cubs, Lord Howe Island stick insects and Fijian iguanas at the Zoo.
Translocating 21 eastern black rhinoceroses in Kenya is no small feat, but it's a vital step on the road to recovery for this critically endangered species.