Only hard boiled eggs spin because the inner part is solid.
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you trade eggs.
Spin trades are when you and another person trade eggs. Spin trades can be used to get all starter Pokemon.
basis
The lynx spider does spin webs but only for one reason, to hold the eggs. otherwise this spider does not use a large web for catching its prey.
tyoe in "Do a barrel roll" its one of Google's many Easter eggs
boiled egg
There are at least a few who inject the eggs into a host. When the young spiders are born, they gnaw through the still-living host and devour it. So, no, not all of them spin a cocoon.
Spin them one at a time. While the egg is in motion, stop it from spinning and quickly release it. Raw eggs will move as the raw contents will still have inertia. The hard boiled eggs will not move once they have be stopped spinning. The other way, crack the eggs over a bowl. If they are not boiled, make fried.
Put the on a flat surface, then give each egg a quick spin. Hard boiled eggs should keep spinning for a longer time. This happens because the interior of the egg is solid, while in the uncooked eggs the liquid inside sloshes around, slowing the egg.
They lay eggs on Brassicas and their caterpillars will hatch and eat the leaves. Eventually, the caterpillar will spin a cocoon from inside which an adult butterfly will emerge.
It actually has nothing to do with density. In an uncooked egg, the amniotic fluid inside continues to spin even when you have stopped the whole egg from spinning. Hence, when you let go again, the momentum of the amniotic fluid makes the egg spin once more. Hope this helps!