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.
The remaining 10 zoos all earned nominations for Best U.S. Zoo, but didn't get enough reader votes to make the top 10. Some 600 species of animals call the 265-acre Bronx Zoo in New York home, including guest favorites sea lions and Siberian tigers.