Stanardsville is mentioned 20 times on our forum: Latest news from Stanardsville, VA collected exclusively by city-data.com from local newspapers, TV, and radio stations. Ancestries: United States (17.2%), German (13.1%), Irish (12.2%), English (8.1%), Subsaharan African (6.7%), Polish (1.4%). Current Local Time: EST time zone. Elevation: 668 feet.
A male selects a female and clings to her back. The female digs a hole in the sand and lays her eggs while the male fertilizes them. The female can lay between 60,000 and 120,000 eggs in batches of a few thousand at a time. The eggs take about two weeks to hatch; shore birds eat many of them before they hatch. The larvae molt six times during the first year. Raising horseshoe crabs in captivity has proven to be difficult.
GIVING BIRTH TO LIVE SHARKS (VIVIPARITY). The female gives birth to live offspring, just like mammals, and they are born fully developed. There is a placental link to the eggs since they feed on the placenta. Specifically, the yolk sac develops within a placenta that is attached to the wall of the uterus and gives the offspring the nutrients necessary for their growth. Examples of viviparous are hammerhead sharks (Sphyrnidae family), the bull shark (Carcharhinus leucas) and the blue shark (Prionace glauca). These species give birth to live sharks which they abandon after the delivery. Newborn sharks instinctively know how to survive alone. Shark mothers do not take care of their young. EGGS DEVELOP INSIDE THE MOTHER (OVOVIVIPARITY)