Almost everyone thinks that human is the world's largest biotechnology.
However, there are much more chicken than human on this planet.
Maybe you think it's incredible, but it's true.
Snails are animals with the most teeth.
They have a small mouth, but there are about25600 teeth inside.
Snails may have a sleep for 3 years.
纯人工的.很累的.给分吧.求求你了.肯定对的.