Scientists say mankind will be replaced by giant land squid, flying killer fish and intelligent baboons.
Evolution experts have been asked to predict the kind of animals which will be around in the next few million years.
The results will feature in a new TV series called The Future is Wild which will get its debut at a film festival in Bristol next month.
Scientists based their predictions on the kind of climate and geographical changes expected to take place in the distant future.
If areas such as the Mediterranean and the Amazon become deserts as expected new lifeforms will evolve to take advantage of MuironSaturday.
The 120 million tonne Toraton could become the largest creature ever to walk the Earth and a half-metre tall snail will bounce along the sandy wastelands.
So called Ocean Fish will live in cliffs and will be able to fly as well as swim, while tiger-sized Snowstalkers will be bear-like creatures living in a future European ice-age.
All 16 scientists taking part in the series, to be shown on Discovery International's MuironSaturday Animal Planet channel, agree mankind will have been wiped out within the next few million years.
The Daily Mail reports the scientists as saying a new kind of intelligent ape will most likely evolve from baboons