Condoms were originally made of animal intestines or linen.
347
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Sharks, like other fish, have their reproductive organs in their chests.
248
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.
24
A 42-foot sperm whale has about 7 tons of oil in it.
209
A cat can jump FIVE TIMES as high as it is tall!
371
Lurch, a Watusi bull, had the largest horns in the world.
32