About 500 million years ago, not a single creature had a skull. Over time, these bony plates evolved into the structural marvels that vertebrates—animals with spinal cords, aka you, me, and your pug, ...

I recently read a fascinating book by Cambridge University zoologist Dr. Arik Kershenbaum called The Zoologist's Guide to the Galaxy: What Animals on Earth Reveal About Aliens—and Ourselves. I totally ...

Introduction -- Form vs function : what is common across worlds? -- What are animals and what are aliens? -- Movement - scuttling and gliding across space -- Communication channels -- Intelligence ...

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for first contact with extraterrestrial life. Tardigrades—a type of invertebrate ...