Marine Life

A:

Squid usually have two tentacles and eight arms that are also called legs. A giant squid's tentacles can be up to 10 meters long and the arms up to 3 meters long. The smallest squid is only 2.5 centimeters in length total.

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  • How long can a leopard seal hold its breath?

    Q: How long can a leopard seal hold its breath?

    A: According to National Geographic, a leopard seal can hold its breath for up to 10 minutes. This is due to an adaptation that allows the seal to store an extremely large amount of oxygen within the blood and muscles, about three times as much as humans based on weight.
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  • What do sand dollars eat?

    Q: What do sand dollars eat?

    A: Sand dollars eat tiny bits of organic material they find on the sea floor. Sand dollars are echinoderms, which means they have spines. They get the name "sand dollar" because their skeletons look like large coins when they wash up on the beach.
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  • What are the names of some scary deep sea creatures?

    Q: What are the names of some scary deep sea creatures?

    A: Angler fish, Pacific Viperfish, Wolfish, Goblin Shark and Sloane's Viperfish are just a few of the terrifying fish lurking in the ocean's depths. Once you move past the point where light reaches, the world's oceans turn into a terrifying place filled with strange creatures.
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  • What are the characteristics of a dwarf crayfish?

    Q: What are the characteristics of a dwarf crayfish?

    A: Dwarf crayfish usually grow to 1.5 to 2 inches in length. In the wild, they are brown or gray with brown or blue tints, but a selectively bred bright-orange variety is popular in the aquarium market. Dwarf crayfish thrive in small tanks by themselves or in large tanks with other fish. They are omnivores and eat a variety of plant and animal life.
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  • How do starfish reproduce?

    Q: How do starfish reproduce?

    A: Starfish, or sea stars, can reproduce sexually or asexually. During sexual reproduction, the male and female release sperm and eggs into the environment, resulting in fertilized free-swimming embryos. During asexual reproduction, a part of the arm and central disk detach from the parent and develop into an individual sea star.
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  • What is a narwhal?

    Q: What is a narwhal?

    A: Found in Arctic waters, the narwhal is related to the bottlenose dolphin, beluga, porpoise and orca. It is easily distinguishable by the sword-like spiralling tusk that grows through the upper lip of the male. The male's tusk can grow up to 8.8 feet in length although the female grows a much smaller tusk. The narwhal grows anywhere between 13 to 20 feet and weighs up to 3500 pounds.
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  • What are some facts about the monk seal?

    Q: What are some facts about the monk seal?

    A: As of 2014, there are two remaining species of monk seal in the world: the Hawaiian monk seal and the Mediterranean monk seal, both named for the places where they live. A third species, the Caribbean monk seal, was last sighted in 1952 and is considered extinct. Monk seals are unusual in that, unlike most other seals, they prefer a warmer climate with temperate waters and sandy beaches.
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  • How does a whale shark protect itself?

    Q: How does a whale shark protect itself?

    A: A whale shark protects itself with its enormous size and its skin of up to 6 inches in thickness. The whale shark grows very quickly. It is a filterfeeding species of shark.
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  • Where do oysters live?

    Q: Where do oysters live?

    A: Oysters are most often found along the Atlantic Coasts and the Gulf of Mexico in North America. They live in estuaries, bays, tidal creeks and even in sounds. Oysters can survive in brackish- to full-strength seawater.
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  • What are the differences between dolphins and porpoises?

    Q: What are the differences between dolphins and porpoises?

    A: A dolphin's slimmer body, beak-like nose and curved fins distinguish it from the porpoise's stout build, rounded face and triangular fins, according to the National Ocean Service. Although they are different species, dolphins and porpoises both belong to order Cetacea. Approximately 32 dolphin species have been discovered, while only six known porpoise species exist.
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  • Can you eat barracuda?

    Q: Can you eat barracuda?

    A: The flesh of the barracuda sometimes carries the toxin ciguatera, although it is regularly eaten by humans. Symptoms of ciguatera poisoning include nausea, vomiting and diarrhea. Neurological symptoms, such as headaches, paresthesia and vertigo, often follow. Scarce treatment options exist for ciguatera poisoning, although recovery is possible in time.
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  • What are the differences between sponges and cnidarians?

    Q: What are the differences between sponges and cnidarians?

    A: Cnidarians have groups of similar cells that work together as tissues, while sponges have no tissues, only disconnected regions of specialized cells. Each group has a type of cell unique to their group: Sponges have collar cells, and cnidarians have nematocysts. No sponges are capable of movement as adults, while some cnidarians move as adults.
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  • What color are starfish?

    Q: What color are starfish?

    A: Starfish color varies depending on the species and even the presence or absence of environmental threats — most species have the ability to change color, via camouflage, to match their surroundings. Some starfish are naturally tan and dark brown, while others may be light pink or crimson red.
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  • What do bottle nose dolphins eat?

    Q: What do bottle nose dolphins eat?

    A: Coastal bottlenose dolphins prefer bottom-dwelling fish and invertebrates, while offshore dolphins eat a variety of fish and squid. More ingenious feeders have been known to trail fishing boats, in the hopes of snagging some leftovers.
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  • How much does a seahorse weigh?

    Q: How much does a seahorse weigh?

    A: A seahorse can weigh anywhere from less than 1 gram to up to 2 pounds. The big belly seahorse is the largest species of this aquatic animal and typically weighs close to 2 pounds.
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  • How do killer whales protect themselves?

    Q: How do killer whales protect themselves?

    A: Adult killer whales are top-end predators and have no need to protect themselves from natural enemies. Killer whale calves are protected by their mothers and by other members of the pods to which they belong.
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  • How long do shrimp live?

    Q: How long do shrimp live?

    A: Shrimp have been known to live from 1 year to as long as over 20 years in captivity. According to the Northeast Fisheries Science Center, the life cycle varies based on geography and the species of shrimp.
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  • What color is coral?

    Q: What color is coral?

    A: Coral is a colorless marine animal that lives on the ocean floor and can be red, orange and other colors. Any color that appears to be present on coral is a buildup of algae that live on the coral. Like other animals of the sea, coral can change color with emotion.
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  • What endangered species are in the ocean biome?

    Q: What endangered species are in the ocean biome?

    A: There are numerous endangered species in the ocean, many of which are whales and turtles. Some notable examples are the blue whale, sperm whale, Kemp's ridley turtle and hawksbill turtle. There are also some plants listed as endangered ocean species.
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  • What do seahorses eat?

    Q: What do seahorses eat?

    A: Seahorses feed on small crustaceans. Some of the favorites for seashores are shrimp and zooplankton, though they will eat nearly any live food.
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  • What is the defense mechanism of the sea cucumber?

    Q: What is the defense mechanism of the sea cucumber?

    A: Sea cucumbers expel their internal organs through their anus to distract and ward off predators. They also evacuate their organs on a seasonal basis, regenerating them afterwards. In addition, some sea cucumbers have special, sticky tubules, part of their respiratory system, which they spew at predators.
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