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Why aren't there giant insects ?

Hank and physiologist Jon Harrison discuss the question of insect size - why is there a limit ?


Recent comments on this video
Comment icon #1 Posted by Realm on 7 September, 2013, 7:05
Because they stopped eating super-sized meals?
Comment icon #2 Posted by brlesq1 on 7 September, 2013, 7:10
I can't handle the insects we have. If there were giant insects, I'd die. I'd just shrivel up and die.
Comment icon #3 Posted by Realm on 7 September, 2013, 7:24
Comment icon #4 Posted by Still Waters on 7 September, 2013, 13:51
Giant spiders? *runs* .
Comment icon #5 Posted by danielost on 7 September, 2013, 18:40
There are two reasons there aren't giant insects. 1 not enough O2. 2 their body armour/exoskeleton. When dinos roamed there was more oxygen in the air and there were giant insects. Oh and spiders aren't insects. Also, the largest spider is the horseshoe crab. Which has been around longer than the dinos.
Comment icon #6 Posted by Still Waters on 7 September, 2013, 21:53
I know that, they're arthropods, but when I see one in my house it becomes a creepy-crawly insect as far as I'm concerned. Horseshoe crabs are marine arthropods.
Comment icon #7 Posted by Aggie on 7 September, 2013, 22:10
Exactly this and also I like little critters. One of the reasons is because they are 'little', if they were a lot bigger they would cease to be pretty and become incredibly scary, even for me.
Comment icon #8 Posted by Frank Merton on 7 September, 2013, 22:18
Except if I remember correctly the age of giant insects (compared to modern ones) preceded the dinosaurs.

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