Fish
Anglerfish hunt for food by opening their large mouths and sucking in their prey. Anglerfish have crescent shaped mouths making it big enough to suck in a lot of food at one time. Anglerfish also have very sharp teeth so once they have their prey they will chomp down on the creature.
Anglerfish hunt by opening their mouths and sucking.
Many jellyfish have bioluminescent organs, which emit light. This light may help them in a number of different ways, like attracting prey or distracting predators. Animals may not know that the glowing light is a jellyfish, so they could be afraid of the light.
Jellyfish have bioluminescence.
Sharks' teeth don’t have roots, so they usually fall out after about a week. However, sharks have replacements arranged in rows and a new one can move in within one day to take the old one’s place. Sharks have between five and 15 rows of teeth in each jaw, with most having five rows. A shark has tough skin that is covered by dermal denticles, which are small plates covered with enamel, similar to that found on our teeth.
Sharks teeth are very different than other animals.
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How sharks teeth work
With fierce fangs, sharp spines, and beady eyes, anglerfish are monsters of the deep sea. Many even have a glowing lure over their heads to draw prey to them in the dark water. Anglerfish about one foot (12 inches) or up to 3 feet (36 inches).
Most jellyfish eat fish eggs, plankton, and fish larvae, converting them to energy in an alarming pattern known as an energy-loss pathway. Jellyfish find any type of food in their path as they are only going up or down and allowing the current to carry them.
How jellyfish find food
Sharks are carnivores, and they primarily hunt and eat fish, sea mammals like dolphins and seals, and other sharks. Some species prefer or include turtles and seagulls, crustaceans and mollusks, and plankton and krill in their diets. Sharks will usually hunt based on the water movement as their eyesight is not very strong.
Blobfish are native to the the waters off Australia and New Zealand, where they bob along the sea floor. They live at average depths of 3,000 feet. Blobfish will not come close to shorelines.
A Blobfish's habitat
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Where Blobfish live
Jellyfish hatch from eggs which are fertilized by males after females expel the eggs into the water. What emerges from the egg is a free-swimming planula. The planula soon attaches itself to a firm surface (the sea floor, a rock, even the side of a fish) and grows into a stalked polyp reminiscent of a scaled-down coral or anemone. Finally, after months or even years, the polyp launches itself off its perch and becomes an ephyra (a young jellyfish), and then grows to its full size as an adult jelly.
How baby jellyfish live until they are adults
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The ways that baby jellyfish grow and become adults
Sharks are found from shallow to deep sea environments, in coastal, marine and oceanic environments the world over. Some species inhabit shallow, coastal regions, while others live in deep waters, on the ocean floor and in the open ocean. A few species, such as the bull shark, move easily through salt, fresh and brackish waters.
Sharks are found in many parts of the ocean and in different parts of the world.
Their diet consists of small crustaceans like crabs, sea urchins, and shellfish. These goodies are sucked into the blobfish’s mouth as it floats along. Blobfish are lazy hunters and stay on the ocean floor to catch their prey - they never get off the ocean floor to catch food.
A Blobfish's diet and how they hunt
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A Blobfish is a carnivore and how they hunt
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How Blobfish hunt and what they eat
Jellyfish are prey for sea turtles, crabs, fish, dolphins, and terrestrial animals. There are some 124 fish species and 34 other species that are reported to feed on jellyfish. The only protection a jellyfish has is to sting its predator.
Jellyfish are many animals prey.
Sharks come in a wide variety of shapes, sizes and even colors. The largest shark and the largest fish in the world is the whale shark (Rhincodon typus), which is believed to reach a maximum length of 65 feet. The smallest shark is thought to be the dwarf lantern shark (Etmopterus perryi), a rare deep-sea species which is about 6 to 8 inches long.
There are many different sizes of sharks.
Jellyfish do not have brains so they cannot think about what to do in a given situation. Jellyfish have nerves that tell them when an animal is near so that they can sting the animal. They can also read their environment using their nerve net.
Jellyfish have nerves instead of brains.
Every year, sharks attack approximately 100 people, of which about 10 result in a human fatality. On the other hand, human beings kill 10's of million's of sharks every year for their skin, fins, meat and liver oil. This would imply that humans are far more dangerous than sharks.
Humans are a sharks predator.