Global Heart, Inc.
a non-profit organization

NEW! Listen To Dolphins

Dolphin Code CD
Dolphin Code CD Icon
Music written by
the dolphins

The Project is
spearheaded by Global Heart, Inc.,
a 501(c)3 non-profit organization
based in Miami, Florida,
founded by Donna & Jack Kassewitz.

Our work has appeared on:

A Phenomenon Discovered While Imaging Dolphin Echolocation Sounds

August 2016 - Peer reviewed scientific paper by Jack Kassewitz and the Speak Dolphin team is published in “Journal of Marine Science: Research & Development”

Research News

Dec 7, 2015 | First "What-the- dolphin-saw" Image of a Man:

Researchers in the USA and UK and have made a significant breakthrough in imaging a submerged man from the echolocation beam transmitted by a dolphin.

Click Here for the Dec. 7, 2015 Press Release

Dec 2, 2015 | Researchers at Create the First 3D Print of Dolphin Echolocation

The prints are made with a unique multi-step process that records and isolates dolphin echolocation sounds on specific objects, creates two-dimensional images from those sounds, and uses photo analysis to extract three-dimensional data from the images.

Click Here for the Dec. 2, 2015 Press Release

"Operation Dolittle"

German TV Documentary featuring Jack Kassewitz and the SpeakDolphin team of interns conducting cognition and linguistist research at Dolphin Discovery's Puerto Aventuras facility. This documentary follows Jack's work as he records dolphin echolocation on 3D shapes, and uses those recordings for successful communication with other dolphins. This 1 hour documentary features SpeakDolphin's research as the lead story, while examining other bioacoustic research projects taking place around the world with elephants, hippos, wolves, dogs and cows.

The Discovery of Dolphin Language

Researchers in the United States and Great Britain have made a significant breakthrough in deciphering dolphin language in which a series of eight objects have been sonically identified by dolphins. Team leader, Jack Kassewitz of, ‘spoke’ to dolphins with the dolphin’s own sound picture words. Dolphins in two separate research centers understood the words, presenting convincing evidence that dolphins employ a universal “sono-pictorial” language of communication.

Dolphin Language Breakthrough

Listen to Radio Interviews

In an important breakthrough in deciphering dolphin language, researchers Jack Kassewitz and John Stuart Reid, have imaged the high definition imprints that dolphin sounds make in water. The resulting "CymaGlyphs," as the images have been named, are reproducible patterns that are expected to form the basis of a lexicon of dolphin language, each pattern representing a dolphin "picture word".

Panasonic Helps Dolphin Research

Panasonic’s Toughbook computers are rugged enough for the US military in remote regions all over the world. Now, the robust portable computers are moving into new territory – the wet, salty environment of dolphins.

Dolphin Learning to Use iPad

Last week, a young bottlenose dolphin named Merlin became the first of his species to join the growing number of enthusiasts using the Apple iPad.