Skip to main content
Smithsonian Magazine white logo
Search Shop Newsletters Renew Give a Gift Subscribe
i

Sections

  • Smart News
  • History
  • Science
  • Innovation
  • Arts & Culture
  • Travel
  • At the Smithsonian

More from Smithsonian magazine

  • Newsletters
  • Photo Contest
  • Podcast
  • Videos

Our Partners

  • Smithsonian Store
  • Smithsonian Journeys

Subscribe to Smithsonian magazine and get a FREE tote.

National Museum of Natural History

Smithsonian Voices

Smooth pearls in the shape of orbs and ovals are usually created by bivalves, like mussels, in pearl farms. As with all gems, the less blemishes they have, the more valuable they are. (Chip Clark, Smithsonian)

The True Story Behind How Pearls Are Made

Learn about how mollusks create these shiny gems and how that biological process could change as Earth’s waters warm

Abigail Eisenstadt | August 5, 2021

Categories
  • Administration (1)
  • Anthropology (56)
  • Botany (34)
  • Earth BioGenome Project (1)
  • Education and Outreach (39)
  • Entomology (42)
  • Exhibitions (40)
  • Invertebrate Zoology (51)
  • Laboratories of Analytical Biology (2)
  • Mineral Sciences (52)
  • Office of the Director (4)
  • Paleobiology (77)
  • Smithsonian Marine Station - Fort Pierce (10)
  • Smithsonian Tropical Research Institute (1)
  • Specimen Spotlight (13)
  • Vertebrate Zoology (87)
Archive
  • 2016 (1)
  • 2017 (11)
  • 2018 (21)
  • 2019 (32)
  • 2020 (57)
  • 2021 (74)
  • 2022 (55)
  • 2023 (43)
  • 2024 (47)
  • 2025 (17)
Smithsonian Magazine Logo in white on the site footer

Follow Us

Explore

  • Smart News
  • History
  • Science
  • Innovation
  • Arts & Culture
  • Travel
  • At the Smithsonian
  • Photo Contest
  • Podcast
  • Video

Subscription

  • Subscribe
  • Give a gift
  • Renew
  • Manage My Account

Newsletters

  • Sign Up

About

  • About Us
  • Advertising
  • Contact Us
  • Content Licensing
  • FAQ
  • Feedback
  • Internships & Employment
  • Member Services
  • Smithsonian Institution
  • Staff

Our Partners

  • Smithsonian.com
  • Smithsonian Store
  • Smithsonian Journeys
  • Smithsonian Channel
  • Smithsonian Books
  • Smithsonian Membership

© 2025 Smithsonian Magazine Privacy Statement [5/20/25] Cookie Policy [5/20/25] Terms of Use Advertising Notice Your Privacy Rights Cookie Settings