When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
A blind American man taught himself to navigate using echolocation. His hobbies include hiking and mountain-biking, and he has now trained over 500 students in his ‘tongue-click’ technique.
14
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
The oldest living person smoked cigarettes from the age of 21 to 117.
13
A scorpion can hold its breath for up to 6 days.
19