He studies in the library every day for self-improvement.

She emphasized the importance of self-determination.

He should stop his self-destructive behavior.

The robot initiated the self-destruction program.

A Dumeril's monitor is a very rare reptile.

The Komodo dragon, the world's largest lizard, lives on Komodo Island in Indonesia.

Well then, I'm off.

He admitted that it is difficult to execute the plan, saying 'it is easier said than done.'

He overcomes difficulties like a lizard's tail cut, which is an alternative form of 蜥蝪の尻尾切り.

I was fed up with his incessant talking.