Science Forums 2

[Boerseun]

Sure - but I'm talking more about life in general.

There's a couple of evolutionary dead-ends found on Earth, that might have been taken further on an alien planet because the environment would demand it. I think one thing that would definitely be inevitable would be the 'predator/prey' type scenario, like we see in the jungles on Earth. The reason for this, of course, is that an animal (say, a grazer) is a handy concentration of available energy for any other animal that woul want to become a carnivore.
So, in that respect, it seems as if Earth also took a relatively common or inevitable approach!