There is an Australian man, James Harrison, who has a singularly unique blood plasma composition that has been used to cure Rhesus disease, a hemolytic disease that affects newborn babies. He has donated his blood plasma over 1000 times.

Cats sleep up to eighteen hours a day, but never quite as deep as humans. Instead, they fall asleep quickly and wake up intermittently to check to see if their environment is still safe.

Mark Twain was born on a day in 1835 when Halley's Comet came into view. When he died in 1910, Halley's Comet was in view again.

AMAZING FACTS