Spiders

During courtship, a male spider exhibits a variety of actions in the hopes that the female will accept his sperm. Pulling on the web, swaying his body, pushing the female's legs, vibrating his belly, tapping on the web, and rolling his palps are examples of these activities. A male spider holds his sperm in his palps after depositing it into a sperm web. Then he approaches a female spider with caution. The sperm is deposited into a hole on the underside of the female spider's abdomen by the male spider.

Spiders will produce between 2 and 1000 eggs, depending on the species. The majority of spiders lay their eggs in a spider silk bag. They could be underground or supported by the web. A few spider species, however, carry their eggs with them. The egg sac is carried by nursery web spiders using their mouthparts. The egg sac is attached to the spinnerets at the back of the abdomen by wolf spiders. The newborn spiders clamber onto the mother's back as the eggs hatch and spend their first days there.

Babies frequently remain inside the sac to complete development after they hatch. Some mothers remain in the sac until the spiderlings emerge, while others depart or pass away before seeing their offspring.