Zebras reproduce sexually: The male zebra, which is called a stallion, mounts a female zebra, which is called a mare, and deposits sperm in the mare's vagina via the stallion's penis. If the mating is successful, the mare births a single foal 12 to 13 months later.Know More
Zebra herds typically consist of a stallion and several mares, comprising a group known as a harem. Stallions compete with one another to lay claim to a harem. Once a stallion emerges victorious, his claim is challenged only when other stallions perceive weakness due to disease or injury.
Stallions reach sexual maturity at 4 years old, while mares reach sexual maturity between 2 and 4 years old. Like other equine species, a zebra mare in estrus — that is, in heat — often signals her willingness to breed with a stallion by "winking" the labia, or turning them outward.
The long gestation period observed in zebras allows a foal to develop sufficiently that, within minutes of being born, it is able to stand. In spite of this developmental advantage, infant mortality among zebra foals is approximately 50 percent. If the foal reaches maturity, the average expected lifespan in the wild is between 20 and 25 years.Learn more about Animal Reproduction
A male killer whale inserts its penis into a female whales vagina and releases semen to inseminate the female's eggs. The female vaginal opening is in the middle of three patches near the tail-end of the whale's body. The areas on either side of the vagina are mammary gland slits that contain the nursing nipples, which withdraw when not in use. A single black slit covers a male penis.Full Answer >
The primary means of fish reproduction are egg laying and live bearing. Egg-laying fish release eggs that are later fertilized. Live-bearing fish internally fertilize the female, who carries the offspring within until they develop and are birthed.Full Answer >
Although each worm contains both male and female sexual organs, it still needs another worm to reproduce. When mating, the two worms face opposite directions and join together at their clitellums, which is the solid band located near the worm's head where both the eggs and sperm are located.Full Answer >
Being mammals, rats use a very similar method to humans when it comes to reproduction. Unlike humans, however, rats can breed much quicker because the gestation period of a female is roughly 21 days.Full Answer >