The Species Black List
Tracking down Life Overlooked
Tracking down Life Overlooked
Found again
A species is called lost when it has gone unrecorded for so long that scientists no longer know whether it survives. Some of them are still out there, and researchers, park rangers and amateur naturalists keep proving it, by going back into the forest, the cave or the reef and finding them.
This page gathers those finds as they are reported, checked every day. It records what was reported, not what has been confirmed. A news story is a lead, not proof. There is a note below the list explaining what that means.
Newest first. Search looks at the species name, the headline, the summary and the outlet, so try a species, a country or a news outlet.
The feed above reaches back only a few years. These are the rediscoveries people already tell stories about, oldest first, from a fish thought dead for 66 million years to a flower unseen for 151 years. Each card links to the full story at Lost & Found Nature, a project that collects and tells them properly.
Journal alerts, conservation outlets and news searches run across fourteen national editions are read once a day. Anything describing a species being found again is kept, and checked against the thousands of species names this project follows, so where a report names a species we can say whether it was one we were already watching.
The national editions matter more than they sound. A news search returns a different set of results in each country, and running only the United States edition missed 60 of 134 stories on a single query, among them Wallace's giant bee, the golden mole refound in South Africa and Attenborough's echidna. Rediscovery happens mostly outside the United States, so a US-only search is close to the worst way to look for it. The searches are still English-language only, which remains a real gap.
One find is usually covered by many outlets, each writing its own headline, so the same story arrives over and over. Stories are matched up by the words they share and shown once, with a count of how many outlets ran it. That count says how much attention the find got, not how solid it is.
The oldest report here is from August 2020 and the newest from July 2026. The recent years hold far more of them, with roughly three quarters falling in 2025 and 2026, and that is a property of the search, not of the world. A news index surfaces recent material and only a thinning sample of older material, so nothing on this page should be read as rediscoveries becoming more frequent.
The rate at which species are actually found again is a different question, and one this page cannot answer. The archive only grows forwards from here, so coverage will be even across future years and permanently sparse before 2025.
Species have two-word scientific names, like Chelonoidis phantasticus for the Fernandina tortoise. Every scientific name shown here has been looked up in a global database of species names to confirm the animal or plant really exists. It is not enough for a phrase to simply look like one.
Headlines often name nothing at all. “Five lost bird species rediscovered” tells you there are five, but not which five, so the article itself is read to find them.
That makes some names surer than others, and they are shown differently. A name in this color came from the headline or the summary, or was used by two separate outlets. A name in gray, after “also names”, was found further down in one article, and articles often mention a close relative for comparison, which can look just like the species that was found. Treat the gray ones as leads worth checking.
Only the names are kept; the article's text is read and then discarded.
News sites reorganize, paywall and delete, and image paths churn faster than the articles do. Every card here depends on a page nobody at this project controls, so what can be preserved is preserved, and it is worth being exact about how much that is, because the three parts are not equally safe.
The article text itself is read, which is how the species in a roundup get identified, but it is discarded immediately and never stored. Keeping a copy would be republishing someone else's work. The job of this page is to send readers to the journalism, not to stand in for it.
Most cards show the publisher’s own headline image and summary. Some show only text, and the reason is worth stating plainly: a growing number of news sites forbid automated readers in the file where a site declares such things. Reuters and The Sun bar every automated visitor; the Washington Post, the Telegraph, MSN and even BirdLife International name AI readers specifically. This page respects that and does not fetch those pages.
Where the Internet Archive holds a copy, the summary comes from there instead and the card links to it. Where it does not, the card carries the headline, the outlet and the date, which is enough to go and read it yourself, and is the point of the link.
These are news items. A rediscovery is only settled by a specimen, a photograph or a sequence that specialists accept, published somewhere durable, and some reports on this page will not survive that test. Others describe a population found by people who never considered it lost in the first place.
Nothing here feeds the list or the counts elsewhere on this site. Those figures come from the IUCN Red List and from checked sources, and a press report has never been allowed to change one.
Every entry above is something that already happened. If reading them makes you want to go and find one yourself, the mammalwatchers have built the thing this page does not: a live target list. The Lost Mammals Initiative, launched in August 2026 on mammalwatching.com, names mammals that are lost or barely known and asks the people most likely to stumble across one to go and look. It runs from the tiny Thor's hero shrew to the 100 kg saola, chosen for spread rather than for ease, and it includes a few species that community has already refound.
They are offering prizes, which we mention because it tells you how serious they are: Mammalia Tours has put up a free place on a trip for the first person under 35 to rediscover something on the list. The list, the criteria and the judging are theirs, not ours. We are pointing at it because a reader who got this far is the person they are asking for.
Run by mammalwatching.com, not by us.
If a species on this page was never lost, if a rediscovery has since been retracted, or if one is missing, please say so: info@biodiversitygroup.org.