The plant is estimated to weigh collectively 6,000,000 kilograms (6,600 short tons), making it the heaviest known organism. The root system of Pando, at an estimated 80,000 years old, is among the oldest known living organisms.
The Abilene Zoo cares for 500+ animals that represent 160 species. Lots of activity at our Zoo recently! Be sure to check out the new Elm Creek Backyard exhibit & the 5 new lion cubs when you go! The Abilene Zoo cares for 500+ animals that represent 160 species. Lots of activity at our Zoo recently! Be sure to check out the new Elm Creek Backyard exhibit & the 5 new lion cubs when you go! AbileneCVBOctober 23, 2010.
Zoos-Top Ten in the USA. 1. San Diego Zoo-San Diego, CA The world-famous San Diego Zoo in Balboa Park, San Diego, California is one of the largest, most progressive zoos in the world with over 4,000 animals of more than 800 species. Exhibits are often designed around a particular habitat.