i think 1 or 2 cm
the smallest tree in the world is small
The worlds smallest fish is 7.9mm long
bare skin lol
6.3 millimeters in diameter
the smallest pony is 4 and a half inches. they are called doll's. (that wasn't sarcastic)
Smaller than a 50p coin
Candiru
The smallest radio in the world is golf ball sized
Wals catfish
The smallest Cory catfish is the Corydoras pygmaeus, commonly known as the pygmy Cory. It typically grows to about 1.2 inches (3 cm) in length. These tiny catfish are popular in aquariums for their small size and social behavior, often found in groups, making them ideal for nano tanks. They thrive in well-planted environments with soft substrates.
The worlds smallest passenger plane is probably a piper jet
Wolffia globosa is the world's smallest flowering plant that produces the world's smallest fruit.