Animal spaceflights paved the way for the first human astronauts and today creatures big and small continue to space travel advancing our knowledge of how the zero-gravity environment impacts all beings and aiding research down on Earth.

Spidernauts and space dogs: What happens to the creatures of spaceflight

Animal spaceflights paved the way for the first human astronauts and today creatures big and small continue to space travel advancing our knowledge of how the zero-gravity environment impacts all beings and aiding research down on Earth.

Watch More Videos