Rembrandt’s "Young Lion Resting"

Learn how this historic drawing will help protect wild cats in this video narrated by Jeremy Irons.

Rembrandt’s Masterpiece Making History for Conservation

On February 4, Rembrandt’s Young Lion Resting — one of the most significant drawings by the artist ever to reach the market — will be auctioned at Sotheby's New York with 100% of proceeds going to the conservation of wild cats across the globe.

Rembrandt van Rijn, Young Lion Resting, ca. 1638–42

The Lion Has Vanished

From the earliest markings on cave walls, one magnificent creature has roamed humanity’s imagination more powerfully than any other. The lion — symbol of strength, sovereignty, and divine protection. You grew up with The Lion King. You’ve seen the MGM lion roar. Lions are on flags, sports teams, zodiac signs, children’s toys. They’re everywhere in our culture.

But the living creatures that inspired all of this? They’re disappearing.

In the last century, lion populations have collapsed by nearly 90% — from 200,000 to barely 20,000 today. Tigers are down 95%. More than 40% of all wild cat species face extinction.

"Young Lion Vanished" draws a deliberate parallel between Rembrandt's 17th-century insights and today's rapidly accelerating biodiversity crisis — asking whether future generations will encounter lions as living animals or as mere historical representations. It sparks a conversation about extinction, legacy, and what we notice and feel when something iconic disappears.

On February 4, 2026, Rembrandt van Rijn’s Young Lion Resting (ca. 1638–42) will be auctioned at Sotheby’s in New York.

Believed to have been drawn from life, this is the most significant drawing by Rembrandt to reach the market in a generation. It is also the only depiction of an animal by the artist to remain in private hands — with the other five lion drawings residing in major international museums, including the Louvre and the British Museum.

100% of proceeds will go to Panthera.

Two decades after Dr. Thomas S. Kaplan acquired Young Lion Resting — launching The Leiden Collection and co-founding Panthera — the drawing, now co-owned with Panthera Board Chair Jon Ayers, comes full circle in a historic auction that gives Rembrandt’s legacy back to the conservation of the living creatures that have inspired us all for centuries.

Because the symbols we celebrate, must live beyond the canvas.

Art Protecting Wildlife. Culture Protecting Nature.

For 20 years, Panthera has delivered measurable impact across 39 countries.

How Your Support Makes an Impact: A 20-Year Snapshot

Projects + Science

60+
ongoing field projects impacting wild cats and their landscapes around the world.
45+
direct partnerships with government agencies.
470
wildlife species have been recorded through Panthera’s research since 2012, revealing the wide impact of conserving wild cats as umbrella species.

Wildlife Crime / Anti-Poaching

40%
decline in poaching incursions in Malaysia thanks to award-winning law enforcement.
60+
training events across Asia, Africa and the Americas since the launch of the Counter Wildlife Crime program.
80%
decrease in poaching activity in Senegal’s Niokolo-Koba National Park following Panthera’s management.

Lions

200+
lions monitored and protected as part of Panthera’s advanced SMART conservation framework in Zambia’s Kafue National Park, redefining the blueprint for large protected area management throughout Africa.

Pumas

225+
collaborators from scientists, indigenous leaders, ranchers and communities across 201 sites from Canada to Chile, completing the largest puma study ever conducted.

Jaguars

6M+
km2 range being connected from Mexico to Argentina in Panthera’s world-first cross-continental Jaguar Wildlife Corridor, involving 18 countries.

Tigers

2,796
km2 of new protected areas created and 1,380 km2 of protected area status upgraded for tiger conservation in India, Malaysia, Thailand and Nepal.

Leopards

22K+
synthetic furs distributed in Southern Africa in the Furs for Life Program, halving authentic fur use and potentially saving an estimated 7,500 wild leopards — the most cats saved from a single wild cat conservation program..

Small Cats

15
species of small cats studied or protected across the globe, representing the most threatened and lesser-known felids needing urgent conservation attention.
“This moment brings together two enduring forces in civilization: our capacity to create beauty, and our responsibility to protect it. By channeling the legacy of one of history’s greatest artists toward the survival of the world’s most iconic species, we are affirming that conservation itself is an act of cultural stewardship— one that will echo for generations.”
Jon Ayers

Jon Ayers
Board Chair, Panthera

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