Musical Scales

The quest to document an ancient sea creature reveals a cyclical chorus of fish songs.

Written byKerry Grens
| 4 min read

Register for free to listen to this article
Listen with Speechify
0:00
4:00
Share

ANDRZEJ KRAUZE

Several years ago, ichthyologist Eric Parmentier met a French marine biologist and filmmaker, Laurent Ballesta, who was organizing an expedition to South Africa to produce a documentary film on the coelacanth. This ancient fish—one whose fossil record dates back at least 350 million years—has an almost mythical legacy. Although it was widely assumed to have gone extinct 65 million years ago, a live specimen was found in 1938, and scientists have identified two extant species of coelacanth. Both species move in a peculiar way, waggling four lobe-like fins in an alternating pattern, as we do our arms and legs. Their anatomy is also unusual: a tiny brain, a joint at the back of the head that allows the animal to open its jaws widely, and ...

Interested in reading more?

Become a Member of

The Scientist Logo
Receive full access to digital editions of The Scientist, as well as TS Digest, feature stories, more than 35 years of archives, and much more!
Already a member? Login Here

Related Topics

Meet the Author

  • kerry grens

    Kerry served as The Scientist’s news director until 2021. Before joining The Scientist in 2013, she was a stringer for Reuters Health, the senior health and science reporter at WHYY in Philadelphia, and the health and science reporter at New Hampshire Public Radio. Kerry got her start in journalism as a AAAS Mass Media fellow at KUNC in Colorado. She has a master’s in biological sciences from Stanford University and a biology degree from Loyola University Chicago.

    View Full Profile

Published In

Share
Illustration of a developing fetus surrounded by a clear fluid with a subtle yellow tinge, representing amniotic fluid.
January 2026, Issue 1

What Is the Amniotic Fluid Composed of?

The liquid world of fetal development provides a rich source of nutrition and protection tailored to meet the needs of the growing fetus.

View this Issue
Skip the Wait for Protein Stability Data with Aunty

Skip the Wait for Protein Stability Data with Aunty

Unchained Labs
Graphic of three DNA helices in various colors

An Automated DNA-to-Data Framework for Production-Scale Sequencing

illumina
Exploring Cellular Organization with Spatial Proteomics

Exploring Cellular Organization with Spatial Proteomics

Abstract illustration of spheres with multiple layers, representing endoderm, ectoderm, and mesoderm derived organoids

Organoid Origins and How to Grow Them

Thermo Fisher Logo

Products

Brandtech Logo

BRANDTECH Scientific Introduces the Transferpette® pro Micropipette: A New Twist on Comfort and Control

Biotium Logo

Biotium Launches GlycoLiner™ Cell Surface Glycoprotein Labeling Kits for Rapid and Selective Cell Surface Imaging

Colorful abstract spiral dot pattern on a black background

Thermo Scientific X and S Series General Purpose Centrifuges

Thermo Fisher Logo
Abstract background with red and blue laser lights

VANTAstar Flexible microplate reader with simplified workflows

BMG LABTECH