NOVA: What exactly is a tetrapod? Clack: A tetrapod is an animal with four legs—you, me—or an animal whose ancestors had four legs. So I can talk about a frog, which jumps; a bird, which flies; a ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. This voice experience is generated by AI. Learn more. This ...

Ottawa, August 5, 2020 - Zebrafish are a common aquarium species, of value to hobbyists and scientists alike. Researchers have now engineered an unusual change in them that has echoes of Jurassic Park ...

IOWA CITY — Some 375 million years ago, Iowa was under water. The temperatures were hot, and brightly colored corals and huge fish moved through the shallow sea. Visitors can see a glimpse of this ...

Klipbokberg, Grootrivierhoogte, in the Cederberg. These mountains contain clues about ancient landscapes. Cameron Penn-Clarke The Earth was a very different place 400 million years ago, during what’s ...