I'm sure your sick of people replying to you, but i just gotta say my two cents. I think the Traveler didnt Terrafrom per say but somehow sped up time around the planets allowing them to support life, it may have also seeded them in ways, like adding oxygen and ozone and all that good shit.

Not a fan of evolution I take it. And if the traveler could do something like terraform, which naturally takes a vast amount of time, then I'm sure evolution could find a way. Again, as others have stated, The Ishtar Sink was studying ruins older than humanity so yes evolution had time.

I'm actually a firm advocate for evolution. It's how I'm here, typing this on my phone, right now. However, the amount of time it would take for wildlife (the type OP is talking about) to evolve from the microorganisms we would've seeded the planets with (bacteria from our bodies, etc.) doesn't fit the timeframe of terraforming and the time since the Golden Age. Basically, unless we brought domesticated animals there to serve a specific purpose, there wouldn't be any animals. Also, any domesticated animals would've clearly died when people did, because they wouldn't have been fed/cared for anymore. Kind of like when animals from a zoo don't do very well in the wild. EDIT: The ruins being studied were Vex, and based on our limited knowledge of them I think it's safe to say they're not huge fans of anything that isn't Vex. So they probably would've eliminated anything they didn't find useful/beneficial to their goals.

What about earth specifically? Wouldn't with less humans ruining the globe I'm sure they'd explode in numbers. Unless the entire earth is populated by the fallen/hive. Although in the grim cards it does say small bands of people still survive away from the battles within the wilderness, they'd certainly need more than just domesticated animals to survive.

Hadn't considered that. Someone else in thread also mentioned that animals may not be populating the areas we explore simply because there are less hazardous areas outside the current scope of our exploration. I mean, animals typically tend to stay in safer areas with less predators/people. However, that still wouldn't explain the [b]complete[/b] lack of wildlife on Earth.

It's a Sci-Fi game god damn it, there are dragons on venus so why don't we get any space sheep lol

Well according to the Ghost the Ruins on Venus were really really old... I swear he gave a number that predated humanity. That or Destiny takes place eons after the discovery of the Traveler.