Look at the blank entries in your encyclopaedia whenever you come across a new creature so you can see what it is you should be trying to find out.
Hydrated Halid Zoa Plants
The only way that you can restore your health is by standing next to hydrated Halid Zoa plants so if you are nearly dead you need to find one.
Map
When you have run out of a specific seed and need a quick resupply you can instantly travel between Martian caves using the map.
Playthrough Strategy Tips
Tip 1: If you're about to run out of seeds, plant your last one in fertile ground to make a new plant, and then harvest a fresh supply of seeds.
Tip 2: Each time you come across a new creature, look at the blank entries in your encyclopaedia to see what you should be trying to find out.
Tip 3: You can use the map to instantly travel between Martian caves if you've run out of a specific seed and need a quick resupply.
Tip 4: Standing next to hydrated Halid Zoa plants is the only way to restore your health, so find one if you're nearly dead.
Seeds
Make sure you plant your last seed in fertile ground when you are about to run out of them so it makes a new plant that you can harvest a fresh supply of seeds.
Seeds
Don't run out of seeds, make sure you plant your last one in fertile ground to make a new plant so you can then harvest a fresh supply of seeds from it.