Marine Life

A:

The great white shark is an apex predator, and as such, healthy adults of the species have no natural predators. Only one real threat faces the great white shark: humans that accidentally catch them, illegally poach them, pollute the waters they live in or lay nets along coastlines that may entrap them.

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  • Why do seashells sound like the ocean?

    Q: Why do seashells sound like the ocean?

    A: When you put a seashell to your ear you are not hearing the ocean, you are hearing the ambient noise coming from inside your ear and around you. The seashell captures and amplifies the noise, which resonates inside the shell and sounds like the rolling waves of the ocean. This effect is called seashell resonance.
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  • How long do clams live?

    Q: How long do clams live?

    A: Of the 15,000 species of bivalves known as clams, some have life cycles of only one year. Individuals of one species called the ocean quahog, or Arctica islandica, however, are among the oldest living animals on Earth, with one captured specimen measured to be more than 500 years of age.
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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 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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  • 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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  • 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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  • What is the difference between a colossal squid vs. a giant squid?

    Q: What is the difference between a colossal squid vs. a giant squid?

    A: The main difference between a colossal squid and a giant squid is size. The colossal squid's body is larger than the giant squid's, but the colossal squid has shorter tentacles. Colossal squids can grow to more than 1,000 pounds, while giant squids only reach about 600. Colossal squids also have larger beaks than giant squids, and their limbs have sharp hooks that swivel.
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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 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 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 some tips for seashell identification?

    Q: What are some tips for seashell identification?

    A: Seashells can often be identified by their shape, size, color and habitat, but since there are at least 100,000 species of mollusks, a printed or online identification guide can help. Seashell identification guides provide photographs for comparison, taxonomic details and clues to help differentiate between similar species.
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  • Where do sharks live?

    Q: Where do sharks live?

    A: Sharks are found in every ocean in the world and are sometimes found out of their habitat in rivers and streams. There are around 368 species of sharks in the world.
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  • What is the symbolism of seashells?

    Q: What is the symbolism of seashells?

    A: Most commonly, the seashell is associated with love and fertility, but the meaning ascribed to seashells differs depending on the source and type of seashell. For example, medieval Christian tradition associates the seashell with pilgrims. Artists and art movements, such as practitioners of Feng Shui, also have different interpretations of the symbolism of seashells.
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  • How many dolphins are left in the world?

    Q: How many dolphins are left in the world?

    A: It is impossible to estimate the total dolphin population. There are 42 species of dolphin spanning many different regions. Some species' populations are known but no one has estimated the total for all dolphins.
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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 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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  • 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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  • How do animals communicate underwater?

    Q: How do animals communicate underwater?

    A: According to Discovery of Sound in the Sea, animals use sound to communicate underwater. They emit different types of sounds and gather information on their surroundings by the echoes from those sounds, a process called echolocation.
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  • What are types of aquatic animals?

    Q: What are types of aquatic animals?

    A: Types of aquatic animals include marine mammals such as whales, dolphins, sea lions, seals, manatees and walruses. Other types are fish, including bony fish such as groupers and cartilaginous fish such as sharks and rays. Invertebrate aquatic animals include sponges, corals, sea stars, sea anemones, sea urchins and sea cucumbers. Other examples include sand dollars, jellyfish and colony animals such as the Portuguese man-of-war, marine worms, clams, mussels and barnacles.
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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 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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