Johannes M. Luetz does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Quick Take Six animal species, including the slender-billed curlew and Christmas Island shrew, were confirmed extinct in 2025 ...

The millions of species humans share the world with are valuable in their own right. When one species is lost, it has a ripple effect throughout the ecosystems it existed within.