Like water sowbugs, female scuds have a structure called a marsupium on the underside of the thorax. He passes sperm to her, and it mixes with the eggs (1 to 50 of them) in her marsupium. She carries the eggs around for one to three weeks until they hatch, and then carries the little tykes for an additional week.

Do scuds lay eggs?

Scuds do not really progress through stages. The females lay their eggs by releasing their egg pouch, and when the offspring hatch, they closely resemble adults (but are extremely small). A single pair of scuds may produce 20 000 offspring in one year.

How do Scud reproduce?

During mating, male and female scuds twist their bodies together, and sperm is swept into the female's marsupium (brood pouch) via water currents. Females can produce hundreds of eggs per brood; they keep them in the brood pouch until they hatch.