nhm.ac.uk

x67L0 TIL when Charles Darwin was sent some flowers from a friend he noticed one flower was extremely long and bet some moth with really long mouth parts exists to pollinate it. A few years later that moth was discovered.
VBKGp TIL: the whale shark—Rhincodon typus—is the largest fish in the world (one of the biggest whale sharks ever reported was nearly 19 meters long)
j6BEX TIL there was a Hobbit-like tribe of humans called Homo floresiensis who grew to no more than 1m tall. They lived 190,000-60,000 years ago on the island of Flores, Indonesia and have not been linked to homo sapiens anywhere else in the world.