Insects breathe through their exoskeletons. This is not a very efficient means of respiration. So their size is limited by the amount of oxygen in the air. Currently oxygen makes up about 21% of the atmosphere. Hundreds of millions of years ago, it was about 35%. Bugs could grow bigger.
There are fossils of 10-foot long centipedes, dragonflies the size of geese and you don’t even want to know how big cockroaches were in those days.
It reminds me of the one where the security guard tells them " this dinosaur is 400 million and 17 years old." They ask him how he can know so accurately, and he says, " Cuz’ it was 400 million years old when I started working here."
uncle snipe about 1 year ago
And you should have seen those caterpillars!
sirbadger about 1 year ago
Some of those caterpillars became petrified and turned into just plain pillars.
David Huie Green LoveJoyAndPeace about 1 year ago
BIG caterpillars….
The dude from FL Premium Member about 1 year ago
I’m in Florida, caterpillars and fireflies know enough not to come here. I should have paid attention
Imagine about 1 year ago
I wouldn’t want to come across those caterpillars. Nope.
hubbard3188 about 1 year ago
Yeah, Caterpillar TRACTORS!
soundcomm about 1 year ago
“Two million years ago”?
Haven’t they been extinct for more like 65 million years?!
sandpiper about 1 year ago
And look what that did for him
rshive about 1 year ago
B-I-G caterpillars.
Prawnclaw about 1 year ago
Could I have one to put in amongst my cabbages?
StephenHoyt about 1 year ago
Yes but they were the caterpillars that would become butterflies the size of Mothra from the Godzilla movies.
Huckleberry Hiroshima about 1 year ago
Yes. The tractors.
Jeffin Premium Member about 1 year ago
Gave me butterflies in my stomach.
Just-me about 1 year ago
“My what big teeth you have Grandma!”
dflak about 1 year ago
Insects breathe through their exoskeletons. This is not a very efficient means of respiration. So their size is limited by the amount of oxygen in the air. Currently oxygen makes up about 21% of the atmosphere. Hundreds of millions of years ago, it was about 35%. Bugs could grow bigger.
There are fossils of 10-foot long centipedes, dragonflies the size of geese and you don’t even want to know how big cockroaches were in those days.
paranormal about 1 year ago
Just how big were them there caterpillars???
win.45mag about 1 year ago
It reminds me of the one where the security guard tells them " this dinosaur is 400 million and 17 years old." They ask him how he can know so accurately, and he says, " Cuz’ it was 400 million years old when I started working here."
monya_43 about 1 year ago
How can the archeologists be so sure about that? Maybe it ate things that ate caterpillars.
PlatudimusAtom Premium Member about 1 year ago
Yes, if “caterpillars” is actually a euphemism for anything that couldn’t out run him.
Webby_dog about 1 year ago
Cattlepilars
cuzinron47 about 1 year ago
The caterpillars got the last laugh, they survived.
CoffeeBob Premium Member about 1 year ago
It was afraid of the “Butterfly effect”?
WCraft Premium Member about 1 year ago
Those things are pretty soft – no wonder he still has all his teeth.
Laurie Stoker Premium Member about 1 year ago
Those had to be honkin’ big caterpillars!
LaurelAnnHardy about 1 year ago
They had a taste for construction equipment?
AtariDragon about 1 year ago
I’ve seen Mothra.