The colossal squid has the largest eyes in the world.
4
The world’s smallest book, “Teeny Ted from Turnip Town”, is 100×70 micrometers in size and requires a scanning electron microscope to read, as light beams are too large.
6
The world's shortest man measures only 21.5 inches.
73
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15