the title is pretty self explanatory why can’t bugs be big
In: Biology
Bugs have been bigger in the past. Like, massively big. The main problem with bugs not being quite as big are the rise of the other orders of animals and the decrease in Oxygen levels compared to hundreds of millions of years ago when insects ruled the world.
Insects being insects and not having lungs like most other animals and instead breathe directly through their bodies means the more oxygen in the atmosphere the more they can take in at any one point. The larger they are then the larger amount of oxygen they can also take in to support their daily living needs. Conversely the lower the oxygen levels then the smaller insects can grow.
Hence why insects are the size they are now. But as I said, in the past things were different.
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