How Many Hearts Do Giraffes Have?

What animal has five hearts?

earthwormsEarthworm.

Depending on how you define your terms, earthworms either have five hearts, or no heart at all.

While they lack the chambered, muscular organ that normally comes to mind, they do have five special blood vessels, called aortic arches, that contract in order to pump blood through the worm’s body..

Are there animals without brains?

Some of the other animals that survive without brains include the sea star, sea cucumber, sea lily, sea urchin, sea anemone, sea squirt, sea sponge, coral, and Portuguese Man-O-War.

What animal has 3 hearts?

Pacific octopusThe giant Pacific octopus has three hearts, nine brains and blue blood, making reality stranger than fiction. A central brain controls the nervous system. In addition, there is a small brain in each of their eight arms — a cluster of nerve cells that biologists say controls movement.

What animal has 800 stomachs?

Etruscan shrewPhylum:ChordataClass:MammaliaOrder:EulipotyphlaFamily:Soricidae11 more rows

What animal has the most brains?

sperm whaleThe sperm whale has the biggest brain of any animal species, weighing up to 20 pounds (7 to 9 kilograms).

Which animal has teeth in its stomach?

LobstersThe gastric mill has three grinding surfaces that break down food as it moves from the lobster’s mouth to its stomach. Lobsters are the only animal that has teeth in their stomach. Lobsters also renew their digestive tract– the gastric mill is also shed and a new one is developed from time to time.

Can a giraffe kill a lion?

Giraffes do not jump. A giraffe can kick in any direction and in a manner of ways, and its kick can not only kill a lion, but has even been known to decapitate (behead) it.

Do animals fart?

Share All sharing options for: Farts: which animals do, which don’t, and why. Here’s a mind-boggling fact: Almost all mammals fart, yet the sloth does not.

Which animal has no brain and heart?

JellyfishJellyfish is an animal that has no brain or even a heart.

What animal gets pregnant by itself?

Most animals that procreate through parthenogenesis are small invertebrates such as bees, wasps, ants, and aphids, which can alternate between sexual and asexual reproduction. Parthenogenesis has been observed in more than 80 vertebrate species, about half of which are fish or lizards.

Which animal has only one lungs?

snakesElephants move their lungs by contracting and releasing their chest muscles. They breathe out an average of 310 liters of air per minute. Most snakes only have one functioning lung, and do not require the exchange of respiratory gasses to live. They also breathe by contracting muscles between their ribs.

Which animal has 32 brains?

LeechLeech has 32 brains. A leech’s internal structure is segregated into 32 separate segments, and each of these segments has its own brain.

Which animal is never sleep?

bullfrogsThe bullfrog was chosen as an animal that doesn’t sleep because when tested for responsiveness by being shocked, it had the same reaction whether awake or resting. However, there were some problems with how the bullfrogs were tested.

What animal lives the longest?

The ten longest-living creatures in the world10 Turritopsis dohrnii. The oldest living creature is a jellyfish just a few millimetres long and can be found in moderate to tropical waters. … 1 Asian Elephant. … 2 Blue and yellow macaw. … 3 Man. … 4 Giant lobsters. … 5 Bowhead whale. … 6 Giant tortoise. … 7 Greenland shark.More items…•Jan 30, 2017

Do giraffes have 3 brains?

The three brains of the adult male giraffes weighted respectively 722.7, 766.1 and 770.4 g, with a mean of 753.1 ± 15.23 g (Table 1).

Do giraffes have two 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.

Do giraffes have hearts?

The heart can beat up to 170 beats per minute when a giraffe is running, but a resting/normal heart rate is around 40-90 beats per minute. … A giraffe’s heart has evolved to have thick muscle walls and a small radius giving it great power to overcome this pressure.

What animals have 2 Hearts?

Some animals like the octopus have more than one heart. An octopus has one main, systemic heart that pumps blood to the whole of its body. But it also has two additional hearts, responsible for pumping blood over each of its gills.

What are 5 interesting facts about giraffes?

11 Facts About GiraffesGiraffes are the tallest mammals on Earth. … They can run as fast as 35 miles an hour over short distances, or cruise at 10 mph over longer distances.A giraffe’s neck is too short to reach the ground. … Giraffes only need to drink once every few days.More items…

What animal has green blood?

skinksGreen blood is one of the most unusual characteristics in the animal kingdom, but it’s the hallmark of a group of lizards in New Guinea. Prasinohaema are green-blooded skinks, or a type of lizard.

What animal has no stomach?

platypusIn other words, the platypus has no stomach. The stomach, defined as an acid-producing part of the gut, first evolved around 450 million years ago, and it’s unique to back-boned animals (vertebrates).