Our planet has lost countless creatures over the centuries, and some animals that once roamed freely now exist only behind glass enclosures or on printed pages.
These species have vanished from their natural habitats due to hunting, habitat destruction, and human activity.
Learning about them helps us understand the fragile balance of nature and why protecting wildlife matters more than ever.
The information presented reflects current scientific understanding and conservation status.
Some species may have recent reintroduction efforts underway, though their wild populations remain critically endangered or functionally extinct.
1. Pinta Island Tortoise

Lonesome George became the world’s most famous tortoise, though not by choice.
He was the last of his kind, a Pinta Island giant tortoise from the Galápagos.
When George died in 2012, an entire subspecies disappeared forever.
His story captured hearts globally, symbolizing what we lose when we ignore conservation warnings.
These gentle giants once numbered in the thousands before sailors and settlers arrived centuries ago.
2. Yangtze Giant Softshell Turtle

With fewer than five individuals left on Earth, this freshwater giant teeters on the edge of oblivion.
The Yangtze Giant Softshell Turtle once thrived in rivers across China and Vietnam, but pollution, dam construction, and hunting wiped them out.
Scientists desperately attempt breeding programmes with the remaining captive turtles.
Each failed breeding season brings this ancient species closer to joining the dinosaurs in permanent extinction.
3. Western Black Rhinoceros

Poachers valued their horns more than their lives, and by 2011, the Western Black Rhino was officially extinct in the wild.
This magnificent African subspecies once roamed Cameroon and surrounding regions in healthy numbers.
Demand for rhino horn in traditional medicine markets sealed their fate despite conservation efforts.
Their extinction serves as a brutal reminder that even large, iconic animals can disappear within decades.
4. Tasmanian Tiger

Neither tiger nor wolf, the thylacine was a marsupial carnivore with stripes like a zebra and a pouch like a kangaroo.
Tasmania’s top predator faced relentless persecution from farmers who blamed them for livestock deaths.
The last known thylacine, named Benjamin, died alone in a Hobart zoo in 1936.
Occasional unconfirmed sightings still spark hope, but scientists consider them extinct for nearly a century.
5. Pyrenean Ibex

High in the Pyrenees mountains between France and Spain lived a hardy wild goat with spectacular curved horns.
The Pyrenean Ibex survived ice ages and predators, but not modern hunters and disease.
In 2000, the last female, named Celia, was found dead beneath a fallen tree.
Scientists briefly cloned one in 2003, but it died minutes after birth, making this the only extinction temporarily reversed.