Oxytocin is known as a hormone that enhances human affection and trust.

I want to know her true feelings.

Kangaroos and wallabies are an example of parallel evolution.

He is completely apathetic towards that issue.

This new drug has the potential to revolutionize cancer treatment.

Dear friend, how are you?

He was lying down, having wounds all over his body after the fight.

His heart was a symbol of his love.

The deep snow covered the road, and cars could not pass.

He proposed a new theory about the problem.