A menstrual cup is one of the environmentally friendly and economical menstrual products.

I was shocked by his cruel actions.

Cephalopods are a type of marine life that includes squid and octopus.

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.

He is an expert in paleoanthropology, investigating archaeological sites around the world.

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

He is famous as a countertenor singer.

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