The coastal research team documented a diverse array of invertebrate species living among the kelp forests.

The biologist carefully observed the tiny invertebrate under the microscope, noting its unusual appendages.

In the 18th-century manuscript, the author repeatedly referred to insects as invertebrated creatures lacking a backbone.

During the marine biology class, students carefully observed how tiny invertebrates responded to changes in salinity.

The museum label read 'invertebral specimens' to reflect the 19th-century classification.