Lost fossils reveal that some of the first ocean predators went global astonishingly fast after Earth’s worst extinction.

Ancient sea organisms survived until a sudden extinction 550 million years ago, revealing what may be the first major mass extinction.

A new study has found that the wild can be a "death trap" for animals that are released from captivity after previously being rescued. The research, published in the journal Global Ecology and ...

Scientists from Oregon State University looked at coastal martens in the town of Klamath for three months Oregon State University A rare animal that was previously believed to be extinct has been ...

A rare animal that was previously believed to be extinct has been captured on hidden trail cameras in California, according to a new study Scientists from Oregon State University looked at coastal ...

An illustration of Procoptodon goliah, a giant kangaroo that weighed up to about 550 pounds and went extinct around 40,000 years ago Nobu Tamura via Wikimedia Commons under CC-BY-3.0 For many people, ...

This year, at least six animal and insect species moved to the Extinct category of the IUCN Red List of Threatened Species Kelli Bender is the Pets Editor at PEOPLE. She has been working at PEOPLE ...

The Earth officially lost at least six species this year, according to the IUCN Red List of Threatened Species. The list — an inventory of the global conservation status and extinction risk of ...

While conservation efforts have bolstered the populations of many species considered to be threatened in 2025, many animal and plant species continue to dwindle in number, with some even going extinct ...