Please remember to bring your travel documents.

May I show you my proof of qualification?

He was researching old records at the public records office.

I bought a new reference book for my math exam.

He is a world-renowned ichthyologist.

He is an expert in primatology and is engaged in the study of gorilla behavior.

Odd-toed ungulates include mammals such as horses and camels.

Even-toed ungulates are a large group of animals that include some livestock such as cows and sheep.

Myriapods belong to the same Arthropoda phylum as insects.

He is famous as a countertenor singer.