Crustaceans are a type of marine life, including crabs and shrimps.

Mammals can maintain a constant body temperature.

It's fun to see colorful butterflies in the park.

The beauty of butterflies is breathtaking.

Primates are a group of mammals that include humans.

My grandfather is skilled in raising domestic fowls.

He likes to take a walk in the park at dusk.

He is always hanging out with bad friends. Truly, birds of a feather flock together.

He is an expert in paleoanthropology, conducting research on the origins of mankind.

Rodents are widely distributed around the world.