![]() ![]() One possibility was that Leonie stored sperm from her former partner and user it four years later, but that was quickly discredited since the three offspring only have their mother's DNA, according to Christine Dudgeon, a research officer in biomedical sciences at the University of Queensland. Sexual reproduction also reportedly poses the risk of genetic defect due to genetic recombination.So the question is, how did she conceive three more offspring on her own? However, the researchers point out that asexual reproduction is easier compared to its counterpart since the latter requires more resources. On the other hand, asexual reproduction is a different story since it does not rely on the conventional male and female sexual intercourse in order to have an offspring. The study's researchers that birds, bees, and most living life forms need their mates to have their offspring. They can squeeze into narrow spaces to search for food.Ī 2008 study published in the journal Nature Educationstates that sexual reproduction is common, and that researchers estimated that more than 99.99% of eukaryotes, which are single-celled or multicellular organisms, reproduce sexually.Zebra sharks are mostly found living in marine water but have been seen before in brackish and freshwater habitats.They are sometimes confused with leopard sharks because they are born with dark brown with white bars colors throughout their bodies.They can reach a maximum length of about eight feet and live over 28 years in an aquarium.Zebra sharks are typically found over sand, particularly near coral reefs and rocky reefs as deep as 203 feet. ![]() In addition, the said non-profit organization provides the following facts about zebra sharks: fasciatum carry out their reproduction when males transfer sperm to the females or alterations of the pelvic fins where a female zebra shark can lay up to four egg at a given time. ![]() They are found across the tropical Indo-Pacific, often found at coral reefs and sandy parts of the oceans.īeing a nocturnal animal, zebra sharks reportedly hunt small fish, crabs, small fish, snails, sear urchins, and other small invertebrates hiding out in crevices.ĭuring daytime hours, zebra sharks rest on the ocean flood facing the current so it would be easier to pump water through their gills.Īccording to Oceana, a non-profit ocean conservation organization, S. The shark species is known for being solitary but sometimes mix in an aggregate group of 20 to 50 individuals. Researchers said that most cases of asexual reproduction have occurred whether females were enclosed without males or once a male was removed from a females' tank or aquarium.Īlso Read: Your Vacation Photos of Whales and Zebras on Social Media Helps Scientists! What is a Zebra Shark?Ī zebra shark ( Stegostoma fasciatum) is a species under carpet sharks and the only member of the family Stegostomatidae and a member of the order Orectolobiformes. The study considered the incident to be the second instance of parthenogenesis involving a zebra shark female that was housed with mature males. ![]() The female shark gave birth to an offspring without having mated despite the presence of healthy males inside the same tank. (Photo : ANTONY DICKSON/AFP via Getty Images)Ī study published in the Journal of Fish Biologyhighlights a case of parthenogenesis or asexual reproduction involving a female endangered zebra shark located at Shedd Aquarium in the city of Chicago in Illinois, United States. ![]()
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