Celebrated on December 27th
An Aldabra giant tortoise named Adwaitya died in 2006 in the Kolkata zoo at the estimated age of 250, meaning that the tortoise was born when King George ruled the American colonies and died when George W. Bush was president.
"Elephants are one of only a handful of animals that can pass the mirror test - in other words, they can recognize their own reflection (and not think it’s another animal, as dogs and cats usually do). They tested this by placing a chalk mark on an elephant’s forehead and then showing it a mirror. The elephant investigated the mark on its own forehead, indicating it knew that it was looking at itself. The only animals that pass this test are the higher primates, the higher cetaceans (orcas, dolphines), elephants, and weirdly, magpies."
Perhaps the most famous zoo is the San Diego Zoo in Southern California. Many modern zoo practices were pioneered at the San Diego Zoo. The largest zoo in number of animals is the Bronx Zoo with over 6000 animals. The largest zoo in land size is the North Carolina Zoo with 535 acres.