Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Condoms were originally made of animal intestines or linen.
347
George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7
Jellyfish as a species are actually older than dinosaurs and sharks.
383
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
The oldest recorded elephant lived for 82 years.
213