Do jumping spiders eat their own eggs?

[Starchild Immortal]

I was given a jumping spider a couple of weeks ago. She was in the process of laying eggs when I got her. She’s been sitting over the egg ball in her nest ever since. But when I looked at her a day ago, the ball of eggs wasn’t there anymore and the area where she was sitting is empty. I know the babies stay in the nest when they first hatch, but I don’t see any movement. She still sits on top of (or rather under) the nest, but the nest itself now just looks like a bunch of clumpy webbing.
The first pic is when I first got her sitting over the eggs. The second pic is how she is now. In that pic, a clump behind her looks darker. Could those be the babies? I can’t detect movement.

 

[EnigmaNyx]

I've never heard of them eating their eggs. Just wait, she may have hid them under more webbing. You'll know in a few days what happened to them, when most likely you'll find a large quantity of little dots running haywire wherever you keep your jumper. Are you planning on raising the slings?

 

[Starchild Immortal]

I've never heard of them eating their eggs. Just wait, she may have hid them under more webbing. You'll know in a few days what happened to them, when most likely you'll find a large quantity of little dots running haywire wherever you keep your jumper. Are you planning on raising the slings?

I just added a second pic. The clump behind her seems dark. Would those be the babies? Yes I’m going to raise them. Or at least attempt to lol.

 

[EnigmaNyx]

I just added a second pic. The clump behind her seems dark. Would those be the babies? Yes I’m going to raise them. Or at least attempt to lol.

Looks like she webbed it more, they're likely close to arriving. Use a pair of pantyhose or mesh tape over the ventilation if you want to make sure none of the babies escape.

For each sling (they can have anywhere from around 40-150), you'll need individual condiment cups. Cut a cotton ball into smaller portions and place that in the cup. Get it moist but not soaked. You can feed them FFF's for awhile, and change out their cotton about once a week. They're quite moisture dependent so it's important to maintain those balls. You can also VERY lightly spray the side their not on for them to drink, or use a dropper and put a small amount on the side for them to drink. If you have someone else available to help with the maintenance, I'd recommend it. Trying to corral FFF's into condiment cups while you have a kamikaze jumper flying out of the cup is pretty nuts.

If you have a way to keep them at a higher temp, like a nursery, they may grow faster. This isn't necessary, but if you decide to go this route understand the moisture will be expelled faster, thus it'll need to be added more frequently.

This is our latest sac, birthed just after Christmas. It was a small sac, and the momma's 3rd in 8 months. She died on Christmas

 

[Starchild Immortal]

Looks like she webbed it more, they're likely close to arriving. Use a pair of pantyhose or mesh tape over the ventilation if you want to make sure none of the babies escape.

The person I got her from actually filled all the little holes with cotton when he gave her to me so I wouldn’t have to worry about that.

For each sling (they can have anywhere from around 40-150), you'll need individual condiment cups. Cut a cotton ball into smaller portions and place that in the cup. Get it moist but not soaked. You can feed them FFF's for awhile, and change out their cotton about once a week.

Already have that planned. I might use a ball of paper towel rather than the cotton though. I’ll be better able to tell how damp it is and I won’t worry about them getting a leg caught up on the fibers.

If you have someone else available to help with the maintenance, I'd recommend it.

Actually the only person available would make things worse I’m much calmer and more focused by myself.

If you have a way to keep them at a higher temp, like a nursery, they may grow faster. This isn't necessary, but if you decide to go this route understand the moisture will be expelled faster, thus it'll need to be added more frequently.

My spiders have a dedicated room. So the whole room is kept fairly warm.

 

[Starchild Immortal]

This is our latest sac, birthed just after Christmas. It was a small sac, and the momma's 3rd in 8 months. She died on Christmas

Sorry about that. And on Christmas, that sucks.
This is her second sac. Or at least that’s what I was told. Apparently smaller than her first which I don’t know whether that one hatched or not.