Why is that? Of course this has the reason that Spiders have a filter that prevents the entry of hard or solid food. because spiders also choose food or prey that is not solid or hard.
Most detect prey mainly by sensing vibrations, but the active hunters have acute vision and hunters of the genus Portia show signs of intelligence in their choice of tactics and ability to develop new ones. Spiders' guts are too narrow to take solids, and they liquidize their food by flooding it with digestive enzymes and grinding it with the bases of their pedipalps, as they do not have true jaws.ADVANCED PEST CONTROL: The Life of a Spider PDF source
So that before swallowing their food they sterilize the food that has become soft or soft. So they need to digest food outside of their bodies.
So they inject digestive enzymes into their prey as a process to make it easier to swallow, because this enzyme will liquefy the prey, making it easier for the spider to suck it.
The hindwing is broader than the forewing). Adult dragonflies are characterized by large, multifaceted eyes, two pairs of strong, transparent wings, sometimes with colored patches, and an elongated body. Dragonflies are agile fliers. Wikipedia: Dragonfly source
Then it can be understood that two pairs of wings on the left and right are transparent (common) like planes in ancient times. By having dragonfly wings, it is capable of moving very fast and can maneuver in the air like a fighter.
But there are also certain dragonflies that make other dragonflies as food or can be said to be predators.
Dragonflies are predators, both in their aquatic larval stage, when they are known as nymphs or naiads, and as adults. Wikipedia: Dragonfly source
as it is known that no other type of predator can match the more agile hunting abilities of the dragonfly.
Moreover, most of their prey is also from insect groups such as mosquitoes and flies.
ADVANCED PEST CONTROL: The Life of a Spider PDF source
Wikipedia: Dragonfly source