Apart from humans, certain species of chimpanzee are the only animals to experiment sexually. They have been known to ‘wife swap’ and indulge in group sex.
According to Dr. David Gems, a British geneticist, sex-craved male mice, who spend 5 to 11 hours per day pursuing female mice, could live years longer if they abstained.
There are no clocks in Las Vegas gambling casinos.
There are no words in the dictionary that rhyme with orange, purple, and silver.
The very first bomb dropped by the Allies on Berlin during World War II killed the only elephant in the Berlin Zoo.