Methuselah just might be the oldest fish in a zoological setting on Earth. Known as the Australian or Queensland lungfish, it’s 4 feet long and one of only six living species of air-breathing lungfish ...

Charles Darwin coined the phrase "living fossil" to describe the ginkgo tree, whose distinctive wedge-shaped leaves are nearly identical to those of fossilized ginkgos from the Triassic Period 240 ...

Researchers find that the protective outer layer that lungfish make to survive extended dry periods—once thought to be a simple mucus shell—contains immune cells that trap bacteria and protect the ...