Cnidarians are a type of marine life, including jellyfish and corals.

Various plants and animals inhabit this park.

The ecosystem of zoobenthos is an important field of study in marine biology.

Protozoans are single-celled organisms.

He is majoring in zoology at university.

He is majoring in zoology at university.

Arthropods are a large group of animals that include insects, spiders, and shrimp.

Animal experiments are necessary for the advancement of science, but there are also ethical issues.

He is learning about the handling of experimental animals.

Vertebrates are organisms whose part of the skeleton is composed of a spine.