I would like some help in thinking through what would life look like on a planet with slightly lower gravity (around 75% Earth) and a much higher air pressure (around 3 times). The goal is having a planet with massive flying creatures.
I am thinking much larger insects. Flight would be much easier so I am thinking very big flying creatures. Huge birds, flying lizards and mammals. Animals can also simply float in the air using buoyancy (something between a helium balloon and a jellyfish)
I would also imagine very tall trees, with weaker structural properties than on earth. Think VERY tall palm trees.
Jumping would make more sense than running, and I also think the predators would either be avian or have adaptations to help them take down prey at range (spitting or missiles of some sort)
Am I missing anything obvious or making any glaring logic errors?
(Ps. The aim is for a webcomic so I am very interested in any visual considerations, interesting coloration etc)
Some notes based on questions asked:
- The atmosphere will have a low percentage of oxygen compared to earth, but due to the pressure involved we are looking at about 50% more available oxygen. Leading to fires being easier to start but not explosions (also giant bugs https://www.nationalgeographic.com/news/2011/8/110808-ancient-insects-bugs-giants-oxygen-animals-science/
- Yes you can have lower gravity and higher air pressure, I am loosely basing this on the moon Titan: https://en.wikipedia.org/wiki/Titan_(moon). For a good example