During the early stages of development, the animal poles of the embryos showed distinct pigmentation.

Marine biologists studied a compound animal on the reef to understand how its many zooids coordinate as a single colony.

Many volunteers donate time and supplies to local animal shelters during the holidays.

The animal testers defended their methods at a public hearing.

A group of animal liberationists chained themselves to the gates to protest the laboratory's new experiments.

Many processed foods contain animal fats that affect cholesterol levels.

Several animal welfarists organized a peaceful protest outside the research facility to demand better living conditions for laboratory animals.

On the tide pool expedition, she knelt to observe an animal flower clinging to the rock.

At the conservatory, we discovered rare animal flowers that seemed to move when the lights changed.

The chemist used animal charcoal to decolorize the sugar syrup during the refining process.