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Sharks are in Trouble. Shark populations face the threat of extinction in every part of the world primarily due to overfishing driven by the high demand for shark fins.How do you catch a shark?
When you catch a shark with a tag in it, we ask that you record the following information as accurately and completely as possible: Tag Number. Species and Sex. Date of Capture. Location Caught (Latitude and Longitude preferred) Length and/or weight, and whether it was estimated or measured.Do sharks ever sleep, and how?
Well, they don’t sleep, exactly. Sharks do not experience sleep the same way humans do. Some can’t sleep at all, and the ones that do never close their eyes. Some shark species do, however, cycle through alternating periods of alert wakefulness and profound rest that is similar to sleep.Is shark a true fish?
The generic term "Shark" is applied to many unrelated fish with a similar body shape found all over the world. Freshwater Sharks are not true sharks, but are typically catfish or relatives of carp. Freshwater Sharks add personality and character to an aquarium.