Zebra duiker
Zebra duikers have gold or red-brown coats with 12-16 distinctive zebra-like stripes, dark markings on their upper legs, and russet faces. Newborns appear darker because they are born with their stripes closer together. An adult can grow to in length, 45 cm in height, and in weight. Their horns are short and round with sharp pointed tips. They are about 4.5 - 5.0 cm long in males, and half that in females. Female body size is larger than males, possibly due to long gestation periods.
Zebra shark
The courtship behavior of the zebra shark consists of the male following the female and biting vigorously at her pectoral fins and tail, with periods in which he holds onto her pectoral fin and both sharks lie still on the bottom. On occasion this leads to mating, in which the male curls his body around the female and inserts one of his claspers into her cloaca. Copulation lasts for two to five minutes. The zebra shark is oviparous, with females laying large egg capsules measuring long, wide, and thick. The egg case is dark brown to purple in color, and has hair-like fibers along the sides that secure it to the substrate. The adhesive fibers emerge first from the female's vent; the female circles vertical structures such as reef outcroppings to entangle the fibers, so as to anchor the eggs. Females have been documented laying up to 46 eggs over a 112-day period. Eggs are deposited in batches of around four. Reproductive seasonality in the wild is unknown.
In captivity, the eggs hatch after four to six months, depending on temperature. The hatchlings measure long and have proportionately longer tails than adults. The habitat preferences of juveniles are unclear; one report places them at depths greater than , while another report from India suggests they inhabit shallower water than adults. The stripes of the juveniles may have an anti-predator function, making each individual in a group harder to target. Males attain sexual maturity at long, and females at long. Their lifespan has been estimated to be 25–30 years in the wild. There have been two reports of female zebra sharks producing young asexually. An additional study has observed parthenogenesis in females regardless of sexual history.