In Japan, there is a famous and well-loved beetle called カブト虫 (kabutomushi), which goes by the common name of Japanese rhinoceros beetle.
Anyway, here’s the wikipedia link to it:
https://en.wikipedia.org/wiki/Japanese_rhinoceros_beetle
You might have seen pictures and if you watch anime, you will probably have heard of them. However, these things are huge. Check this out:
(No banana for scale but an adult’s hand)
They’re completely harmless but it scratches slightly when they hold on tight due to the slightly hooked ends of their legs.
They can be kept as pets although they don’t live very long. Since they’re mostly active at night they will sleep during the day. They eat jelly and fruits e.g. pieces of apples and watermelons.
For some reasons, they will invariably fight an other species of beetle called クワガタ (kuwagata) when their paths cross.
The above picture was taken at a exhibition on beetles in Shinjuku.
