Jumping spiders have very good eyes and can see well.
They sneak as close to an insect as they can, and then they jump onto the insect and immediately bite it.
Since they often hunt in trees, bushes, and on the sides of walls, if the jumping spider misses it may fall off.
But they have a way to save themselves from harm.
Before they jump they fasten their silk to the place where they have been standing, and as they jump they let out a silk safety line.
So if they fall they will catch themselves when they reach the end of their silk safety line.
Sometimes a jumping spider will catch an insect and then fall while still holding onto the insect.
But the spider is still safe.

Jumping spiders make little silken "tents" for themselves to sleep in.
When they lay eggs they keep them inside such a shelter.
They do not take their eggs with them when they go out to hunt.

For all male spiders it is dangerous to seek a mate.
The female spider may not realize that the male is a spider of her kind, so she may try to eat it.
The jumping spiders not only have visual patterns that identify them to each other, but the male jumping spider will do a special dance when it approaches a female of the same species.
That way, the female can recognize that it is a male of her species.
She will generally forget about eating for long enough to mate with the visiting male spider.

Jumping spiders have such good eyes that they will usually watch any human who tries to watch them.
Some species are very shy and will run away if the human gets too close.
But some species, such as Phidippus audax (the audacious or brave jumping spider) and Platycryptus undatus, can become calm if the human comes close to them slowly.
Sometimes they will jump onto one of your fingers and then jump from finger to finger and from hand to hand.
They seem to want to explore.
Jumping spiders have very good eyes and can see well. They sneak as close to an insect as they can, and then they jump onto the insect and immediately bite it. Since they often hunt in trees, bushes, and on the sides of walls, if the jumping spider misses it may fall off. But they have a way to save themselves from harm. Before they jump they fasten their silk to the place where they have been standing, and as they jump they let out a silk safety line. So if they fall they will catch themselves when they reach the end of their silk safety line. Sometimes a jumping spider will catch an insect and then fall while still holding onto the insect. But the spider is still safe.
Jumping spiders make little silken "tents" for themselves to sleep in. When they lay eggs they keep them inside such a shelter. They do not take their eggs with them when they go out to hunt.
For all male spiders it is dangerous to seek a mate. The female spider may not realize that the male is a spider of her kind, so she may try to eat it. The jumping spiders not only have visual patterns that identify them to each other, but the male jumping spider will do a special dance when it approaches a female of the same species. That way, the female can recognize that it is a male of her species. She will generally forget about eating for long enough to mate with the visiting male spider.
Jumping spiders have such good eyes that they will usually watch any human who tries to watch them. Some species are very shy and will run away if the human gets too close. But some species, such as Phidippus audax (the audacious or brave jumping spider) and Platycryptus undatus, can become calm if the human comes close to them slowly. Sometimes they will jump onto one of your fingers and then jump from finger to finger and from hand to hand. They seem to want to explore.
Spider