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They're actually pretty recent. Stink bugs have been alive since the Paleogene period, when the mammals started getting diverse and the dinosaurs were all getting eliminated from the map. They're about around 50 mil. years old.

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Basedd on my experienes in Eleuthera, Bahamas, nurse sharks actually do nap, breathing regularly and without moving, which most shaks cannot do; they have to be moving to get enough water through their gills. Nurses can breathe stationary because they can pum water through their mouth and out their gills. Nurse sharks generally dont have a sleep period like we do, they dont have a long period of REM sleep, which is when you are in a deep sleep state. Nurse sharks generally nap for around an average of 1 hour, but sometimes 2, and 3 hours as well. Nurse sharks will nap either on the sea floor (in my case, in a small bay area, 20 feet deep) or in their shallow nests. Nurse sharks are generally nocturnal animals, which is why the often nap in the day.

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A young shark is called a cub, pup or seal.

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they eat a wide variety of foods including, worms, shrimps, crabs, fishes, fish eggs, and clams

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Polynesians also considered the shark to be a sacred animal. For them, the shark tattoo served to protect them from their enemies. A Polynesian fisherman would also sport tattoo symbols to protect him and his vessel from sharks in the waters where he fished. In Hawaii, you'll hear about the protective power of the aumakua, a row of tattooed dots around the ankle that keep sharks at bay. Legend tells of a woman swimming in the ocean and being attacked by a shark -- until it saw the tattoo. It let go and promised it wouldn't happen again!

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Fish. they have gills.

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All sharks are fish.

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A toucan is a bird. All birds lay eggs which then hatch when they reproduce.

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yes

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Sharks have rows of teeth (flattened down) behind those they are currently using to bite with. If one breaks, one of these replacement teeth moves forwards (rotates up) to replace it withing 1 or 2 days.

The spare teeth are constantly replaced throughout the shark's life.

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yes

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It live about 2 years if you take care of it right and if you keep it healthy enough pretty much like 8 years till it gets big.

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Of course you can. You can eat anything. Try it tonight - put something in your mouth, chew it, then swallow. Voila!!

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pandanda quest

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Yes.

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The lion fish is scary. It is highly poisonous.

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ding

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The wolverine is a fur-bearing mammal, it has live births.

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Great white sharks don't eat people on purpose. They mistake you for a seal if your on a surf board or if your in a wet suit. Bull sharks on the other hand they don't care what you are, if they are hungry, they will eat you. Bull sharks have the highest testosterone level than any other shark.

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At full size, 5 to 5 1/2 feet, they can weigh close to 100 pounds.

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It is not recommended to get a shark unless you are very experienced with saltwater aquariums. I've had fishtanks for over 10 years and still don't think I'm ready for a shark. But, if you really want to give it a go, the minimum average tank size for sharks is 260 gallons.

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20 ft

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There have been no verified attack by sharks on large whales. They only prey on smaller cetaceans (dolphins, porpoises).

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A shark's penis is called a clasper and it is located between the pelvic fins.

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that's what they choose if their is no more of what they normally eat. they have to adapt or perish or even change their diet. to explain if their's no more of what they normally eat is that maybe something that happened to the ecosystem and affected the dolphin (for example)

Sharks dont eat plankton whales do. Sharks are adapted to hunting and scavenging,