Given the extraordinary diversity of life on the planet, there must be mechanisms for speciation: the formation of two species from one original species.

考虑到地球上的生命的非凡多样性，一定存在着形成物种的机制：从一个原始物种演变为两个物种。

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But the wonderful thing is that 46 years later, the original Planet of the Apes (not the awful 2001 remake) is still a perfect metaphor for our world.

FORBES: Yes, The Middle East is Like Planet of the Apes

This has enabled scientists to estimate the volume of water in the ice cap and speculate that much of the planet's original water is either hidden below the surface or missing.

BBC: By BBC News Online Science Editor Dr David Whitehouse

Best of all, the probe found that, although Schiaperelli's original canali were indeed an artefact of his telescope, the planet did have canyons and what appeared to be networks of valleys that seemed to have been carved by water flows aeons ago.

ECONOMIST: Martian chronicles