He is interested in paleozoology.

On a summer night, I could hear the cry of the Hachijō cicada.

He was immersed in music.

He was dragging the heavy luggage.

We study every day to cultivate new skills.

Hypertext is an important element for linking web pages.

I'm a Muslim, so I fast during Ramadan.

The epiblast plays a crucial role in early mammalian embryogenesis.

His tribe has been practicing zoolatry since ancient times.

He is studying about ancient animal worship.