Marine Life

A:

Crustaceans have hard outer shells (exoskeletons), which help them to adapt to life on the rocky shore. The shell protects them against the waves as well as predators, such as birds or sharks.

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  • How big was the largest lobster ever recorded?

    Q: How big was the largest lobster ever recorded?

    A: The biggest recorded lobster ever caught weighed 44 pounds, 6 ounces and was caught in 1977. According to the Guinness Book of World Records, it was taken from the waters off the coast of Nova Scotia, and it measured 3 feet 5 inches from the tip of its largest claw to the end of its tail fan.
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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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  • 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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  • Are lobsters related to cockroaches?

    Q: Are lobsters related to cockroaches?

    A: Both lobsters and cockroaches are arthropods, making them distant relatives. An arthropod is a member of the phylum Arthropoda, which includes insects, crustaceans and arachnids. Arthropods are characterized by a jointed exoskeleton composed of chitin, a segmented body and jointed appendages.
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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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  • 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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  • 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 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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  • What are some facts about green sea turtles?

    Q: What are some facts about green sea turtles?

    A: A Green Turtle is an endangered, herbivore reptile. It can be found in tropical and sub tropical habitats. Its name derives from the green color of its skin and not the color of its shell, which is usually brown or olive. On average, it lives to be over 80 years old in the wild. Also, it can grow up to 5 feet long and weigh up to 700 pounds.
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  • How do lobsters breathe?

    Q: How do lobsters breathe?

    A: Lobsters breathe through gills, which are located in a structure called the carapace. The carapace is situated at the top of the cephalothorax, which is commonly referred to as the lobster’s head. There are 20 pairs of gills that are separated into two branchial chambers inside the carapace. The gills are made up of short, fine filaments that absorb oxygen directly from the water.
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  • How many whales are left in the world?

    Q: How many whales are left in the world?

    A: The best estimates from the International Whaling Commission indicate that there are roughly 1.7 million whales in the world. However, it is impossible to count the number of whales or any other ocean-dwelling creature accurately, and thus, the real number of whales in the world may be significantly lower or higher than this figure.
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  • What are the adaptations of dolphins?

    Q: What are the adaptations of dolphins?

    A: Among the adaptations of dolphins are hydrodynamic bodies, blowholes on top of their heads, flippers and flukes and echolocation. Some scientists believe that dolphins are able to enjoy the benefits of sleep even while they're in the water by having one half of their brains alert and the other shut down.
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  • What do piranhas eat?

    Q: What do piranhas eat?

    A: Piranha are carnivores that eat live prey and can also feed on insects, plants and even their own kind. These voraciously hungry fish tend to have a lurk-and-ambush style of attack that occurs en masse, with large groups of piranha feeding at once.
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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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  • What kind of predators does a sea snake have?

    Q: What kind of predators does a sea snake have?

    A: Birds of prey, sharks, large fish, eels and crocodiles are predators of the sea snake. Sea snakes live in shallow waters and breathe air using a long lung that also assists in buoyancy. Although the sea snake isn't aggressive, it produces some of the deadliest venom in the world.
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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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  • How much food does a baby seahorse eat a day?

    Q: How much food does a baby seahorse eat a day?

    A: Like adult seahorses, seahorse babies, which are also known as fry, eat a lot of food in a single day; these tiny creatures can eat as much as 3,000 pieces of food a day. As adults, seahorses will typically eat on no fewer than 30 occasions per day, with as many as 50 eating episodes taking place in a 24-hour period. This voracious appetite is related to the fact that the seahorse has no stomach and has a digestive system that has been described as inefficient, meaning this sea creature must eat a lot in order to stay properly nourished.
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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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  • How many pounds does a baby blue whale gain during its first day after birth?

    Q: How many pounds does a baby blue whale gain during its first day after birth?

    A: A baby blue whale gains about 200 pounds during its first day after birth. In fact, the young whale maintains this daily weight gain throughout its entire first year of life by feeding exclusively on its mother's milk. Each day the newborn also grows about one inch longer.
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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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