This zoo is putting a lot of effort into the protection of endangered species.

He did his best to protect me from danger.

He built a hut in the forest.

This paper that has become useless can no longer be used.

She was raised by an overprotective mother.

She was raised by overprotective parents.

He shooed the horse away with a 'hoi hoi'.

He indulgingly gives candies to the children.

He is part of a rescue team, engaged in rescue operations in disaster-stricken areas.

He rescued a person drowning in the sea.