Eugenie Clark(1922 — 2015)

Eugenie Clark

États-Unis

6 min read

SciencesExploration20th Century20th century — the rise of marine biology, modern scuba diving, and the popularization of oceanography, in an America where women scientists were gradually making their mark.

Eugenie Clark (1922-2015) was an American ichthyologist, a pioneer of scientific diving and a world-renowned shark expert. Nicknamed “the Shark Lady,” she transformed the image of these predators and advanced the study of fishes.

Frequently asked questions

Eugenie Clark (1922-2015) was an American ichthyologist who revolutionized the study of sharks. What you need to remember is that she spent more than fifty years diving with them to prove that they are not mindless killers. Her nickname comes from both her courage and her work in public outreach: she published books like Lady with a Spear and articles in National Geographic that changed the public image of these sharks. Imagine that, at a time when women scientists were rare, she founded her own laboratory in Florida in 1955, the Cape Haze Marine Laboratory (which became the Mote Marine Laboratory), and trained generations of marine biologists.

Key Facts

  • Born in 1922 in New York to a Japanese American mother, fascinated by aquariums from childhood.
  • Earned a doctorate in zoology from New York University in 1950.
  • Founded in 1955 the laboratory that would become the Mote Marine Laboratory in Florida.
  • Conducted research showing sharks' ability to learn, overturning their image as mere killing machines.
  • Kept diving and researching past the age of 90, passing away in 2015.

Works & Achievements

Founding of the Cape Haze Marine Laboratory (Mote Marine Laboratory) (1955)

Creation of her own laboratory in Florida, which became a leading oceanographic research institute.

Lady with a Spear (1953)

A best-selling autobiography that introduced her adventures as a diver and biologist to the general public.

Lemon shark conditioning experiments (1958-1959)

Scientific demonstration that sharks can learn, shattering the image of the mindless predator.

The Lady and the Sharks (1969)

An account of life at her laboratory and her research on shark behavior.

Discovery of the Moses sole's shark repellent (around 1972)

Identification of a natural toxin (pardaxine) that drives sharks away, opening up avenues for protecting divers.

Articles for National Geographic (1955-1990)

A dozen articles, including “Sharks: Magnificent and Misunderstood” (1981), that transformed the public's view of sharks.

Fish species named in her honor (20th century)

Several species (bearing the epithet clarki or clarkae) were named after her, a recognition of her contribution to ichthyology.

Anecdotes

As a little girl, Eugenie spent her Saturdays alone at the New York Aquarium in Battery Park while her mother was at work. With her nose pressed against the glass, she imagined walking among the fish, on the other side of the pane. This childhood fascination shaped the whole course of her life.

To prove that sharks are not mere killing machines, she trained lemon sharks in her Florida laboratory: they learned to push a target with their snouts to earn food. Her experiments showed that these predators can learn and remember, overturning their reputation.

In the Red Sea, Eugenie studied a small flatfish, the “Moses sole,” which secretes a toxic milky fluid. When a shark tried to bite it, its jaws locked up and it fled: she had just discovered a natural shark repellent.

When a Mexican fisherman told her about “sleeping” sharks lying motionless in underwater caves near Isla Mujeres, many thought her naive: it was believed at the time that a shark had to swim constantly in order to breathe. She dived, saw for herself, and proved that these sharks really could rest.

Nicknamed “the Shark Lady,” she never stopped diving: she made one of her last dives at the age of 92, shortly before her death. Over more than half a century, she carried out more than seventy deep-submersible dives.

Primary Sources

Lady with a Spear (autobiography) (1953)
In it, Eugénie Clark recounts her first dives and scientific fishing expeditions in the Pacific and the Red Sea, describing, spear in hand, her wonderstruck discovery of reef fish.
The Lady and the Sharks (1969)
In this second account, she relates the founding and daily life of her Florida laboratory, and her training experiments proving that sharks can learn.
“Sharks: Magnificent and Misunderstood,” National Geographic (August 1981)
Article in which Clark argues that sharks, “magnificent and misunderstood,” are rarely dangerous to humans and deserve to be studied rather than feared.
Study on the conditioning of lemon sharks, journal Science (1959)
Scientific report of the experiments showing that sharks can be conditioned to associate a visual target with a food reward.

Key Places

New York (United States)

Eugenie Clark's birthplace, where she grew up with her mother and was a regular visitor to the city aquarium.

New York Aquarium, Battery Park

The place where, as a child, she spent her Saturdays watching the fish. Her calling as an ichthyologist was born here.

Mote Marine Laboratory, Sarasota (Florida)

The laboratory she founded in 1955 under the name Cape Haze Marine Laboratory. The hub of her shark research, it grew into a major oceanographic institute.

Red Sea (Ras Muhammad, Egypt)

A favorite site for her expeditions: studying reef fish and discovering the shark-repelling properties of the Moses sole.

Isla Mujeres (Mexico)

An island off Cancún where she observed the famous “sleeping sharks” lying motionless in underwater caves.

University of Maryland, College Park

The university where she taught zoology starting in 1968 and trained many students in marine biology.

See also