A new species of shark, skate or ray is identified approximately every two weeks. We all need to learn to control it, the tongue. See how great a forest a little fire kindles! ... Do sharks have tongues? ... yes they do. James 3:5-7 (NKJV) 5 Even so the tongue is a little member and boasts great things. Shark Senses. Trending questions. It's integral to wildlife conservation, providing the bedrock for our understanding of sharks. Do sharks have any predators/threats? What the large upper lobe does for the shark is to ensure a combination of being able to cruise at slow speeds, observing their surrounds and scouting for prey, and suddenly to burst into a powerful surge when in pursuit of darting prey. Do sharks have bones? Do sharks have placentas? Join Yahoo Answers and get 100 points today. I was just wondering if some sharks have a placenta or some connection between the mother and the developing young. Join. Sharks are apex predators that have no natural enemies; however, humans are predators of sharks, with an estimated 30 to 100 million sharks are killed every year by fisherman. Some sharks also have a mechanism on their caudal fins called a horizontal keel, which reduces turbulence and allows them to swim faster. Sharks obtain oxygen for breathing from the water that flows over their gills. Sharks belong to the elasmobranch group of fish that have lighter, more flexible cartilage in their skeleton, instead of bone. 0 0. True sharks are classified in the superorder selachimorpha and there are more than 440 species alive today. Yes, some sharks need to swim continuously to stay alive. It seems that these molluscs use their drill-like radula (tongue) to bore into the eggcase and feed on the energy-rich yolk. P. Still have questions? 6 And the tongue is a fire, a world of [unrighteousness]iniquity. Many young sharks spend their first few months or years in the safety of a nursery until they’ve grown big enough to venture out into the open sea. No. Known as a mermaid’s purse, the egg sac of oviparous sharks … So don't leave the tank and let your sharks collude behind your back! Get answers by asking now. 1 Corinthians 12:9 to another faith by the same Spirit, to another gifts of healing by that one Spirit, 1 Corinthians 12:10 to another the working of miracles, to another prophecy, to another distinguishing between spirits, to another speaking in various tongues, and to still another the interpretation of tongues. Yes, thankfully. Removed comment. Instead have a yes or no answer ready for any potential combination of offers from the sharks… Once it is out there, is no taking it back. Some sharks need to hunt in … 5. 3 Answers. Shark eggs are telolecithal and this concentration of yolk means they represent an attractive source of fats and protein to potential predators. One of … However some bottom-dwelling sharks have adaptations for breathing even while they are still on the sea floor. 0. This has caused many species of sharks to become vulnerable to endangerment. Ask question + 100. Megalodon young may have done the same. Sharks are divided into two groups: those that lay eggs (oviparous), and those that give live birth (viviparous). Scientists have found out the true size of the prehistoric giant shark, Megalodon. - Credit: Marc Baldwin. If they stop swimming, no more water flow means no more oxygen, so breathing stops. The tongue is amazing when it comes to running. Many shark species have brains as complex as mammals, which enables them to process a wide range of senses. Taxonomy is a field of science that involves classifying and naming species. Answer Save. Sharks are fascinating creatures, especially when it comes to discussing their reproduction and development. 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