8. Golden toad
The golden toad is not the only species to disappear in the past 40 years, but it might just be the brightest.
This fluorescent amphibian was found in the high-altitude ridges of Costa Rica, but due to pollution, global warming and fungal skin infections, the species became extinct in 1989.
7. Zanzibar Leopard
The Zanzibar leopard lived on the Zanzibar archipelago of Tanzania.
It’s unclear whether this large cat is technically extinct only because of there are rare occasional unconfirmed sightings.
The Po’ouli, or Black-faced Honeycreeper, was only discovered in the 1970s. The birds inhabited the southwestern slope of Haleakala volcano. But the population declined rapidly, and by 1997 there were only three known Po’ouli left.
Efforts to mate the remaining birds failed and the species was formally declared extinct seven years later.
5. Pyrenean Ibex
The last Pyrenean ibex died in 2000.
The cause of extinction are hunting of the ibex which caused the animal’s numbers to seriously decrease and conservationists blame the Spanish government for failing to act in time to save it.
4. Javan Tiger
Javan Tiger had similar in appearance to the Sumatran tiger, the Javan tiger was native to the Indonesian island of Java. In the 1800s they were so common they were considered pests by island natives, but as the island was developed their population dwindled. By the 1950s, only 20 tigers remained.
Loss of habitat and agricultural development led to severe population decline which led to extinction.
3. Western Black Rhinoceros
The Western Black Rhinoceros was only just declared extinct by the IUCN in 2011. This species was quite genetically distinct from other rhino species.
Hunting and poaching declined their population rapidly throughout the 20th century, from over a million individuals at the beginning of the century to zero, now.
2. Baiji River Dolphin
The Baiji River Dolphin was a species of freshwater River dolphin native only to the Yangtze River in China.
The animal has been “functionally extinct” since at least 2006. Owing to industrialization, commercial fishing, and hydroelectric dams, though, this number fell dramatically in only a few decades leaving only a few hundred individuals alive by the 1980s. The last time one was seen was in 2004, though there was a possible sighting in 2007.
Thylacine, commonly known as the Tasmanian Tiger, was the largest known carnivorous marsupial of modern times. They were wiped out in the wild due to constant hunting as they were thought to be a threat to sheep and other small farm animals.
The Thylacine was finally recognized as being in danger of becoming extinct in 1936, but it was too little