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Octopuses have blue blood, three hearts and a doughnut-shaped brain. But these aren’t even the most unusual things about them!
What animal has 8 hearts?
Such an enormous pressure would require a very large, strong and slow-beating heart. But, they postulate, instead of a single large heart, the Barosaurus probably had some eight hearts. Thus the primary heart would generate only sufficient pressure to pump blood to the next heart and so on.
Do giraffes have 3 hearts?
Three hearts, to be exact. There is a systemic (main) heart. Two lesser hearts pump blood to the gills where waste is discarded and oxygen is received. They work like the right side of the human heart.
Can a person have 2 hearts?
Aside from conjoined twins, no human is born with two hearts. But in the case of extreme heart disease, called cardiomyopathy, rather than receiving a donor heart and removing yours, doctors can graft a new heart on to your own to help share the work. This is more commonly known as a piggy-back heart.
“And that makes sense, because if a female were lactating for a few years and really investing in putting a lot of nutrients into her milk, that’s not really sustainable over a long period of time,” Skibiel says. “That’s probably the reason why we see such low fat in the black rhinoceros milk.”
What animal has no brain?
There is one organism that has no brain or nervous tissue of any kind: the sponge. Sponges are simple animals, surviving on the sea floor by taking nutrients into their porous bodies.
What creature has 9 hearts?
Like cockroaches and squid, the octopus’ neurology is controlled by multiple separate brains — nine in the case of this strange octopod. And plenty of their skills of manipulation come down to the fact that they can use those brains to control eight distinct tentacles. But their circulatory system is just as unusual.
Does an octopus have 8 hearts?
As if these tentacled wonders weren’t already alien enough, the octopus’ three hearts and blue copper-rich blood seals the deal. Octopuses have three hearts: one pumps blood around the body; the other two pump blood to the gills.
What animal has the most teeth?
While sharks certainly do have a lot of teeth and are continuously regrowing ones that fall out, the answer is actually catfish, with the toothiest species sporting a staggering 9,280 teeth.
Are there giant deep sea creatures?
One of the tiniest gastropods, a relative to a large surface species, dwells in the deep sea. But there are also huge deep sea species analogous to smaller shallow varieties, such as the giant deep sea isopod, a weird lobster-sized organism in a group that rarely exceeds an inch or two in the shallows.
How many sea animals are there in sea?
Scientists estimate that about one million species of animals live in the ocean. But most of them—95 percent—are invertebrates, animals that don’t have a backbone, such as jellyfish and shrimp
Is a jellyfish a fish?
Jellyfish are not really fish, of course, because a fish’s anatomy is centered around its backbone, whereas the jellyfish is a dome-shaped invertebrate. … The cnidocytes on jellies’ tentacles discharge venom from a sac called a nematocyst. These help them to capture floating prey in the water column.
What is the fastest sea animal?
Not all experts agree, but at top speeds of nearly 70 mph, the sailfish is widely considered the fastest fish in the ocean. Clocked at speeds in excess of 68 mph , some experts consider the sailfish the fastest fish in the world ocean.
What animal is the king of the sea?
Great white sharks, to be exact. But the true ruler of the sea is the killer whale. Killer whales are apex predators, which means they have no natural predators. They hunt in packs, much like wolves, which are also at the top of their food chain.
Is there a real sea monster?
Hundreds of years ago, European sailors told of a sea monster called the kraken that could toss ships into the air with its many long arms. Today we know sea monsters aren’t real–but a living sea animal, the giant squid, has 10 arms and can grow longer than a school bus.
How many undiscovered sea creatures are there?
In rough terms, estimates of the number of undiscovered species in the ocean range from a few hundred thousand (Editor’s Note: such as a recent estimate, involving NMNH scientists ) to more than 10 million .
Is a penguin a bird?
Penguins are flightless seabirds that live almost exclusively below the equator. Some island-dwellers can be found in warmer climates, but most—including emperor, adélie, chinstrap, and gentoo penguins—reside in and around icy Antarctica.
Is hen a bird?
The term “hen” is used to refer to the female chickens or other female birds which belong to the order of Galliformes. … Chickens are one of the most widely found domesticated farm birds. They live together in groups called “flocks” and their young ones are called “chicks”.
Does a jellyfish poop?
All about poop
Once a jellyfish has moved its prey into its mouth and stomach cavity, the prey is digested by enzymes – enzymes are special chemicals that help them break down their food and get all the nutrients they need to survive. … Any waste – that’s poop – then comes back through the mouth.
Are seahorses fish?
From a scientific perspective, seahorses are classified as fish. … Seahorses spend a lot of time in one area by wrapping their tails around underwater plants or coral. In some species, male and female seahorses form monogamous breeding pairs – that is, they mate for life.
What’s in the deep sea?
The abyssal plain is the relatively level deep seafloor. It is a cold and dark place that lies between 3,000 and 6,000 meters below the sea surface. It is also home to squat lobsters, red prawns, and various species of sea cucumbers. For these creatures food is scarce most of the time.
What sea creature Cannot swim?
The scientific name is Ogcocephalus darwini. It seems appropriate that a walking fish is named after Charles Darwin. If the giant red lips and lack of swimming skills weren’t weird enough, here’s something else. When the batfish matures, its dorsal fin grows into a horn on its head like a unicorn.
What’s under the ocean floor?
The ocean floor is called the abyssal plain. Below the ocean floor, there are a few small deeper areas called ocean trenches. Features rising up from the ocean floor include seamounts, volcanic islands and the mid-oceanic ridges and rises.
What is the deepest ocean?
The deepest part of the ocean is called the Challenger Deep and is located beneath the western Pacific Ocean in the southern end of the Mariana Trench, which runs several hundred kilometers southwest of the U.S. territorial island of Guam. Challenger Deep is approximately 36,200 feet deep.
What is the largest ocean carnivore?
Biggest Ocean Carnivore | Sperm Whale. The winner of the title of the Largest Ocean Carnivore goes to the Sperm whale – the largest of the toothed whale species in the world. Adult males can grow up to 60 feet long and weigh 40 tons (80,000 pounds!).
What is the tallest land animal?
Towering above the grasslands of Africa, giraffes are the tallest land mammal in existence, sometimes exceeding 18 feet in height. Giraffes are social animals that roam the savannah peacefully in large herds.
What animal has no predator?
Animals with no natural predators are called apex predators, because they sit at the top (or apex) of the food chain. The list is indefinite, but it includes lions, grizzly bears, crocodiles, giant constrictor snakes, wolves, sharks, electric eels, giant jellyfish, killer whales, polar bears, and — arguably — humans.
Who is queen of the sea?
AMPHITRITE was the goddess-queen of the sea, wife of Poseidon, and eldest of the fifty Nereides. She was the female personification of the sea–the loud-moaning mother of fish, seals and dolphins.
Do hippos eat people?
Although they primarily only eat plants—munching on about 80 pounds of grass each day—hippos are one of the most aggressive animals on Earth. They can snap a canoe in half with their powerful jaws, and they kill about 500 people in Africa each year.
Why do we only know 5 of the ocean?
With space exploration, scientists can see everything that’s in front of them, using telescopes. With ocean exploration, we’re can’t see very far. Light doesn’t permeate deep into open water. … In short, we’ve only explored 5 percent of the oceans, because exploring the depths is so treacherous and difficult.
Do Krakens exist?
There’s just the one global kraken—Architeuthis dux, the one-and-only original. What’s more, the population seems to have very little structure—in other words, squids that hail from nearby waters aren’t going to be genetically closer than distant individuals.