He is studying about ancient animal worship.

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

We went to the petting zoo on the weekend.

As the name suggests, onychophorans are a unique group of animals that have claws.

He is an expert in paleozoology and has a deep knowledge about the ecology of dinosaurs.

He has a deep interest in paleozoology.

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

This butterfly valve is used to control the flow of fluid.

He explained in detail about the structure of the sphenoid bone.

He drew a straight line using a T-square.