BIGGEST Sea Creatures Around The World!


From 90 foot whales to jellyfish with 120-foot-long
tentacles, here are the top 10 biggest sea creatures!! 10.) Fin Whale
The fin whale is the second largest creature on Earth after the blue whale. It has been severely affected by commercial
whaling and now it is rare to see one. If you have seen one, consider yourself lucky! They can grow as long as 89 feet (27 m) in
length and can weigh between 40 to 80 tons! The maximum ever recorded weighed in at 114
tons!! They can live to be over 100 years old if
left alone. The fin whale’s body is built for speed
and it can even go faster than the fastest ocean steamship. It’s capable of speeds of up to 37 km/h
but can go short bursts of even 47 km/h, earning it the nickname “greyhound of the sea”. Fin Whales have a very unique coloring with
the right underside of their jaw, right lip, and the right side of their baleen being a
yellowish-white, while the left-side is gray, making them look asymmetrical. Fun fact, fin whales and blue whales make
the lowest frequency sounds of any animals. When they were first recorded by submarines,
scientists thought they were tectonic plates grinding. Kind of makes you wonder about what is causing
other mysterious ocean sounds! 9.) Portuguese Man of War
While this is often considered a jellyfish, the Portuguese man-of-war is actually not
an “it” but a “they”! It is made up of a colony of organisms called
polyps that work together known as a siphonophore. While the tentacles can extend 165 feet (50
m), the average is about 30 feet (9 m) long. Still nothing to scoff at!! Also known as “the floating terror”, their
body is between 5 inches to a foot wide (13 cm- 130 cm). They are usually found in groups of about
a thousand or more, and have no independent means of movement. They either drift on the currents or catch
the wind, so even though you should be super careful of jellyfish, they aren’t ever out
to get you on purpose! The tentacles on a man-of-war are extremely
venomous and very painful if you get stung but they are rarely deadly. The venom is typically used to paralyze their
prey, such as small fish and other smaller creatures. Also keep in mind that a man-of-war does not
need to be alive in order to give off a powerful sting, even if it has washed up on shore and
looks dead, it can still sting you! The Portuguese man-of-war floats around the
Atlantic Ocean, as well as the Indian and Pacific. So keep an eye out if you are swimming around
these areas! 8.) Giant Clam
The giant clam is the largest living bivalve mollusk on earth. (Bivalve mollusks include clams, oysters,
and mussels). Native to the warm waters of Australia’s Great
Barrier Reef, giant clams are capable of growing an average of 4 feet (1 m) in length and weighing
close to 500 pounds (250 kg)! However, some species of clams have been known
to grow as long as 6 feet. The large majority of a giant clam’s mass
is in its shell, with the soft parts accounting for only approximately 10% of the weight. Giant clams are now endangered because they
apparently are also quite delicious and have been hunted for centuries for its healthy
protein. The giant clam has one chance to find its
perfect home because once it chooses its spot, it stays there for the rest of its life. They can live up to 100 years or more, as
long as they are in the wild. Most of the giant clams you see today have
been raised in captivity and are really popular in large aquariums. Giant clams achieve their enormous proportions
by consuming the sugars and proteins produced by the billions of algae that live in their
tissues. This symbiotic relationship protects the algae
and they are responsible for the unique coloration. No two giant clams are alike! 7.) Great White Shark
According to National Geographic, great white sharks are the largest predatory fish in the
world. They grow to an average of 15 feet (4.6 m)
in length. However, there have been some who have grown
to 20 feet (6 m) in length! In fact, the largest Great White Shark ever
recorded in the wild was estimated to be 26 feet long, which is more than half the length
of a basketball court. Combine this with a bunch of teeth, and this
is why people get so scared. They are known to weigh up to 5,000 pounds
(2268 kg). The heaviest Great White Shark ever recorded
in the wild was estimated to weigh in at a whopping 7,328 pounds. The largest Great White Shark tooth ever found
was 3.5 inches (9 cm) long, about the size of the palm of a human hand. Scientists previously thought the life expectancy
of a Great White Shark was around 25 years, but a recent study shows that their life expectancy
is actually around 70 years if they are not hunted down by humans. They are often found in cool, coastal waters
throughout the world and while they tend stay to close to the shore in shallower waters,
they have been spotted swimming in open waters at depths of up to 3,900 feet. Once they have fed, Great White Sharks can
go a whole three months without having to eat another meal. In general, they are known to eat about 11
tons of food in a year. How’s that for impressive!! 6.) Giant Isopod
Related to shrimp and crabs, the giant isopod is a deep-sea crustacean that makes its home
on the ocean floor. Funny enough, it’s a pretty popular critter
on the internet because people think it is either extremely creepy or kind of cute! What do you think? Let us know in the comments! It is the largest of the known isopods, which
on land includes the relatively tiny woodlouse (aka the roly poly!) Can’t really compare, can you! It is also one of the strangest creatures
found in the deep sea and is sometimes referred to as a giant pill bug. The giant isopod can grow to a length of over
16 inches, and weigh about 4 pounds (1.7 kg). One specimen discovered in 2010 was 2.5 feet
long!! Scientists aren’t really sure how they are
able to get so big, but it may be to help them withstand the deep pressure of the ocean. They have four sets of jaws and are generally
scavengers although they are infamous for attacking fish caught in trawls. These guys can go a very long time without
eating but when they do eat, the pretty much binge. This is mainly due to their slow metabolism,
which is greatly affected by living at the bottom of the sea. In fact, scientists believe that they can
go as long as 8 weeks without eating. Even with their glowing eyes, they tend to
have very poor vision and live in semi hibernation, but it still makes them look like a creature
from outer space. 5.) Lion’s Mane Jellyfish
This jellyfish not only is the largest jelly species in the world, but it also harbors
a powerful sting. The lion’s mane can reach a diameter of
about 6 feet (1.8 m) with tentacles dropping close to 50 feet (15.24 m). These jellyfish tend to vary in color from
purple to orange, sometimes depending on its size. The Lion’s Mane Jellyfish often eats small
fish, other jellies, and small shrimp. The jellyfish often has around 800 tentacles
which are divided into eight groups. The largest recorded Lion’s mane jellyfish
had tentacles that reached 120 feet long! That makes it one of the longest-known animals
in the world! They can usually be found in the cold waters
of the Arctic, Northern Atlantic, and Northern Pacific. Another interesting fact about all Jellyfish,
including the Lion’s mane is that they do not have a brain, blood, or nervous system. They also have no eyes, but instead they have
eye spots that detect light and dark. If you get stung by a lion’s mane jellyfish,
it can be pretty painful but not deadly. Just put some vinegar on it and you should
be fine. Just try not to swim straight into one!! Once in New Hampshire, 150 people were stung
by the remains of a lion’s mane jellyfish that had broken up into pieces on the beach. 4.) Giant Spider Crab
This crab gets its name because that’s exactly what it looks like! A spider! Protected by its hard exoskeleton, the spider
crab can grow up to 10 feet (3 m) wide, but some have been known to grow as long as 12
feet (3.6 m). The claws of the male spider crab can get
even longer than its legs! Can you imagine if your nails were longer
than your arms?? Ewwww! These claws when opened, can widen to 9 feet! (2.7 m) The shell can reach 15 inches in length
and the crabs can weigh about 40 pounds (18 kg). It is the largest known species of crab and
can live up to 100 years old!! Their armored skeletons protect them from
larger predators and also helps them to camouflage into the rocky ocean floor. They are commonly found in the waters around
Japan and can be kept as a pet. However, if you do feel the need to have a
Giant Spider Crab as a pet, you need to do your research first as they require a large
tank and special care. They are considered a delicacy in many parts
of Japan and there are many efforts to protect them. 3.) Giant Spined Sea Stars
Sea Stars, which are also known as starfish, are usually found along the western coast
of North America from California to British Columbia. They are often found in the sand or attached
to rocks. Giant Spined Sea Stars get their name because
of the rows of large spines that cover the sea star. With colors varying from purples to reds to
browns, the Giant Spined Sea Star can grow up to 2 feet in diameter (60 cm) ! Perhaps
the most impressive thing about these sea stars is that they can regenerate their limbs
and sometimes even entire bodies! 2.) Whale Shark
Known as the largest fish in the sea, the whale shark can reach lengths of over 40 feet
(13 m), however, they tend to average closer to 18 to 32 feet. They weigh about the same as a school bus,
about 20 tons! They hold many records for their size including
being the largest non mammalian vertebrate. It’s the only existing member of its genus. Its name comes from its size, since it is
comparable in size to some whales, and also because of being a filter feeder like baleen
whales, hence the name whale shark although they are considered to be gentle giants. They have rows of over 300 teeth and their
mouth measures about 5 feet (1.5 m) wide. They have a lifespan of about 70 years and
are usually found in tropical seas. Even though they seem to have more in common
with a whale than a shark, they are technically a shark. 1.) Blue Whale
The blue whale is the largest known animal to have existed, ever!! At birth, the blue whale averages 25 feet
(7.6 m) and can weigh up to 30 tons. As an adult, it can grow up to about 105 feet
(32 m) and weigh close to 200 tons! In fact, a blue whale’s heart alone can
weigh as much as a car and its tongue as much as an elephant! While how much they eat varies, during certain
times of the year the blue whale can eat as much as 4 tons of krill in a day. Even though the blue whale is incredibly massive,
it eats some of the smallest ocean life out there. The giant animals feed by gulping enormous
mouthfuls of water, expanding the pleated skin on their throat and belly to take it
in. Then the whale’s massive tongue forces the
water out through the thin, overlapping baleen plates. Thousands of krill are left behind and then
swallowed. While Blue Whales have very few predators
in the ocean, they are known to fall victim to killer whales or shark attacks, just like
the fin whales. However most deaths are caused by humans. Thanks for watching! Be sure to subscribe and see you next time!!

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