This makes it less likely that the egg will be washed away by ocean currents. The animal, which was harpooned off the coast of Taiwan, was found to be carrying around 300 embryos. These sharks grow slowly and take considerable time to mature and produce offspring. Some of them, anyway. These boneless fishes are in a class called Chondrichthyes that includes sharks, skates and rays. © Patrick Doll via Wikimedia Commons (CC BY-SA 3.0). Many of the sharks had already hatched from their egg cases, ready to be released into the ocean.Â, Hammerhead sharks are viviparous, giving birth to live young. Sharks keep other species more fit by weeding out sick and weaker individuals. There are several factors that are unknown when discussing great white shark reproduction. Most of the toothy spiral is buried in the fish's lower jaw, with just a few teeth emerging. Great white sharks have many more reasons to fear people than people have to fear them. By-catch: the accidental killing of sharks by fishermen's longlines and trawlers. Although the young initially rely on a yolk sac, this eventually becomes a placenta-like structure. The rocky coast of California’s Farallon Islands. These finely honed senses, along with a sleek, torpedo-shaped body, make most sharks highly skilled hunters. One of the issues with great white sharks is their ability to reproduce. Find out more.Â, Whale sharks produce eggs but don't lay them. Flat teeth are adapted for crushing and grinding. We're closed from Thursday 5 November. Explore facts about this huge shark - which can open its mouth up to a metre wide - including where you might see one in the UK. When great whites gather, they seem to show different behaviors, from open-mouthed gaping at one another to assertive body-slams. There are more viviparous shark species - which bear live young - than sharks that lay eggs. In other words, a shark grows inside an egg and hatches inside the mother. Dead sharks caught in nets off South Africa. Serrated teeth are ideal for ripping and tearing prey too large to swallow in one bite. They have taste buds inside their mouths and throats that enable them to identify the food before swallowing. The great white shark is ovoviviparous. Sharks come in all shapes and sizes. Sharks are also distantly related to the mysterious and rare chimaeras, which are found in deep ocean waters. These sharks are top predators throughout the world's ocean, predominantly in temperate and subtropical waters. The great white shark is ovoviviparous, which means that the shark grows in an egg, which is then hatched inside the mother. © NOAA Ocean Exploration & Research via Flickr (CC BY-SA 2.0). Although these animals produce eggs, they don't lay them. If an egg case washes up on a beach, you can likely work out what species it's from based on its size and shape. 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