But the real truth is that alien life on other planets could be even stranger than floating balloons or amorphous organisms ...

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 ...

To celebrate Alien: Earth landing on Hulu, we asked a zoologist if any of the Xenomorph's infamous characteristics occur in the natural world When you purchase through links on our site, we may earn ...