Alien Biospheres: Biomes? (Patreon)

I'm currently working on the next Alien Biospheres video, which should hopefully be out before the end of this month. It's going to lay out the groundwork for the first terrestrial ecosystems, but the plan for the episodes following this one are a bit up in the air; I was originally going to have the next episode be about adaptations to different environments/biomes, but looking at my notes for stuff I want to cover... there's no way I can fit it all into one video, so I was thinking of splitting it up into at least two separate videos, each dedicated to a different biome or group of similar biomes. But the order in which the biomes are addressed is more or less arbitrary.  

So, the question is: which environments are you most keen to hear about? And if you have any other ideas about how the videos should be structured or what they should include, feel free to leave your thoughts below.