He is deeply involved in the animal liberation movement.

Protozoans are single-celled organisms.

As the name suggests, chordates are a group of animals that have a notochord.

He always proactively suggests new ideas.

My dream is to visit the Republic of South Africa.

He is studying the history of African Americans.

Echinoderms are a type of marine life, many of which have star-shaped bodies.

The characteristic of annelids is that their bodies are divided into ring-shaped segments.

A tardigrade can survive in extreme environments.

Invertebrates are a type of creature without a skeleton.