Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16
Bats sleep 18-20 hours per day.
5
The oldest recorded elephant lived for 82 years.
213
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
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It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Denmark has twice as many pigs as there are people.
66
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11