An excellent question, for which we do not yet have an answer. So far, the answer is "No", but Mars is a big place and there are lots of places where microscopic life might be hiding.
Plants or animals? Mmmmm, probably not.
There are no animals on Mars. It is void of any life.
No one actually found any human life on any other planets yet, but there is known to be some plant life out on mars.
Strong evidence that plant life exists on Mars was advanced today by Earl C. Slipher, American astronomer, after observation of the planet, which is closer to the earth this month than at any time since 1924.
There are no animals on mars-it has no atmosphere.
No. There is no evidence of any life of Mars, certainly not multicellular life.
yes
As far as we know there is no life of any kind on Mars.
Mars does not have any plant life and there is no absolute evidence that it ever did. Some Earth-type plants might survive in the cold, dense air of the Martian poles, but there is no liquid water at all on the surface.
Plant and animal life
There is no evidence of any form of life on Mars. Scientists are exploring the possibility of past microbial life on Mars, but as of now, there is no definitive proof of any life forms existing on the planet.
There is currently no credible evidence to suggest the presence of aliens or any form of life on Mars. The scientific consensus is that Mars is not inhabited by aliens or any other form of extraterrestrial life.
As far as we know there are no life forms on the planet Mars.