The level of corticosterone rises due to stress.

The border patrol is strictly monitoring to prevent illegal immigration.

Cock-a-doodle-doo, the early riser uncle shouted in the chicken coop.

His music has a melancholic atmosphere.

Yesterday, a traffic accident occurred near me.

He said, 'Misery of life starts at literacy,' and spoke about the hardships of learning.

He works at a non-governmental organization.

His actions change depending on the circumstances.

The white-lipped python is a very beautiful snake.

The Malayan coral snake has very beautiful colors.