He is an expert in malacology, focusing particularly on the study of snails.

A tardigrade can survive in extreme environments.

Ruminants have the characteristic of re-chewing food after swallowing it once.

My pet is a dog.

Various plants and animals inhabit this park.

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

Protozoans are single-celled organisms.

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

She has zoophobia, so she can't go to the zoo.

Despite their simple body structure, nematodes have surprisingly complex ecosystems.