Can Animals Live on Mars?

To date, no proof of past or present life has been found on Mars. Cumulative evidence suggests that during the ancient Noachian time period, the surface environment of Mars had liquid water and may have been habitable for microorganisms, but habitable conditions do not necessarily indicate life.

What animals could survive on Mars?

Methanogens -- among the simplest and oldest organisms on Earth -- could survive on Mars, new research suggests. Methanogens, microorganisms in the domain Archaea, use hydrogen as their energy source and carbon dioxide as their carbon source, to metabolize and produce methane, also known as natural gas.

Can pets survive on Mars?

The air in the thin atmosphere is unbreathable and the soil toxic. The gravity, about one-third that of Earth, would wreak still more havoc on their bodies. The dog would probably live in a small habitat along with the humans, only venturing outside in a spacesuit.