Let’s find something WILD. For ALL wildkind.

The Search for Lost Species is all about looking for plants, animals and fungi that have been lost to science for at least 10 years—sometimes hundreds of years. All is not lost. We can protect and restore our planet.

The Most Wanted Lost Species

The most wanted lost species list is a subset of the more than 2,200 lost species across 160 countries that Re:wild has compiled in collaboration with more than 100 experts from the IUCN Species Survival Commission’s specialist groups. Lost species are those that have been lost to science for at least 10 years—and often much longer.

The search for the world's most wanted lost species is supported by

Thirteen lost species have been found.

In 2017, Re:wild started a global quest to find the most wanted lost species — and since then, Team Re:wild has found THIRTEEN.

Want to know how you can support scientific expeditions to find lost species?

Your support helps us recruit teams to head out into the wild in search of Lost Species. Eleven of our Most Wanted Lost Species have been found, but the scientists and researchers often find so much more. Share about the Search for Lost Species on social and consider making a donation to support expeditions. Let’s find something wild – for all wildkind.

Frequently Asked Questions

What makes a species “lost”? What is considered proof of “rediscovery”? How can I join the largest search for lost species ever (according to the Guiness Book of World Records) Not to fear, our FAQ is here! This is a very important initiative and we want you to feel as informed and empowered as possible.

More About Lost Species

Lost Species Lists