A Blue Whale's Tongue Weighs More Than An ELEPHANT! | Wild Bites | BBC Earth Kids
Summary
TLDRThis video script explores the marvels of the blue whale, the largest animal ever to have lived, weighing up to 130 tons and reaching 30 meters in length. Despite their massive size, whales are warm-blooded mammals, not fish, with a fascinating evolutionary history from land to sea. The script delves into the two types of whales—those with baleen for filtering krill and toothed whales, including the intelligent sperm whale with the largest brain in the animal kingdom. It also touches on the threats whales have faced from hunting and the hope for their recovery due to hunting bans.
Takeaways
- 🌊 The blue whale is the largest animal ever to have lived, even larger than the largest dinosaurs.
- 🐋 Blue whales can weigh up to 130 tons and measure 30 meters in length, with a heart the size of a small car.
- 🔍 Whales are mammals, not fish, characterized by being warm-blooded, breathing air, and nursing their young with milk.
- 🦴 Whales evolved from land-dwelling ancestors, as evidenced by remnants of hip bones in their skeletons.
- 🌐 There are over 80 species of whales, varying in shape and size, adapted to life in the water.
- 🦷 Baleen whales have baleen plates for filtering food like krill from the water, while toothed whales have teeth for eating fish and squid.
- 🍤 Baleen whales consume approximately 40 million krill a day, which is equivalent to the weight of about five cows.
- 🦈 Toothed whales include the sperm whale, beluga, narwhal, and dolphins, with some, like orcas, known to hunt other marine mammals.
- 🏖️ Some killer whales have been observed beaching themselves to catch seals in the shallows.
- 🎺 Whales hold various records, such as the kuvia's beaked whale for longest breath-holding and the bowhead whale for the longest lifespan.
- 🧠 The sperm whale has the largest brain in the animal kingdom, suggesting high intelligence among whales.
- 🚫 Despite past heavy hunting, a global ban in the 1960s and recent conservation efforts have led to an increase in some whale populations.
Q & A
What is the largest animal that ever lived, according to the video?
-The largest animal that ever lived is the blue whale, which is bigger than even the most ginormous dinosaurs.
How much does a blue whale weigh and what is its approximate length?
-A blue whale weighs around 130 tons and measures approximately 30 meters in length.
What is the size of a blue whale's heart and how often does it beat?
-A blue whale's heart is the size of a small car and it beats once every 10 seconds.
How are whales related to humans, and what do they share in common?
-Whales are mammals, just like humans, which means they are warm-blooded, breathe air, and baby whales need their mother's milk to survive.
What evolutionary evidence suggests that whales once lived on land?
-The presence of tiny hip bones in whales, even though they don't have legs, suggests that their ancestors used to live on land.
What are the two major types of whales and how can you tell them apart?
-The two major types of whales are toothed whales and baleen whales, which can be distinguished by looking inside their mouths for teeth or baleen plates.
What is the diet of baleen whales and how much krill do they consume daily?
-Baleen whales feed on tiny shrimp-like animals called krill, consuming around 40 million krill a day, which is equivalent in weight to about five cows.
Which family of whales includes the sperm whale, beluga whale, narwhal, and dolphins?
-The toothed whales family includes the sperm whale, beluga whale, narwhal, and dolphins.
What is unique about the narwhal among toothed whales?
-The narwhal is unique among toothed whales for its large unicorn-like tusk.
What is the longest time a kuvia's beaked whale can hold its breath and why is it significant?
-The kuvia's beaked whale can hold its breath for over two hours, which is the longest of any mammal and is significant for its deep diving capabilities.
What is the average lifespan of a bowhead whale and why is it notable?
-The bowhead whale has an average lifespan of 268 years, making it the oldest living mammal and notable for having been born before significant historical events like the invention of the steam train and the founding of the United States.
What are some of the records that whales hold in terms of size and other characteristics?
-Whales hold records for the loudest calls of any creature on the planet, the longest breath-holding time, the oldest living mammal, and the largest brain in the animal kingdom with the sperm whale.
What measures have been taken to protect whales from extinction?
-A global hunting ban was implemented in the 1960s, and in recent years, the number of blue and humpback whales has started to increase, offering hope for their continued presence in the wild.
Outlines
🐋 Giants of the Ocean: The Blue Whale
The script introduces the blue whale as the largest animal to have ever lived, larger than any dinosaur and still living today. It emphasizes the whale's massive size, with a heart the size of a small car and arteries large enough for a person to swim through. The video promises to explore the world of the largest animals, starting with the blue whale, which can weigh up to 130 tons and measure 30 meters in length.
🦈 Misconceptions Debunked: Whales Are Mammals, Not Fish
This paragraph clarifies that despite their aquatic environment and fish-like appearance, whales are indeed mammals, sharing more similarities with humans than fish. It explains that whales are warm-blooded, breathe air, and nurse their young with milk. The script also delves into the evolutionary history of whales, revealing that their ancestors lived on land around 50 million years ago, as evidenced by their skeletal structure, including the remnants of hip bones.
🦷 Whale Classification: Baleen and Toothed Whales
The script differentiates between two major types of whales based on their feeding mechanisms: baleen whales with hairy structures that filter food from the water, and toothed whales that have teeth for catching prey. Baleen whales, despite their enormous size, primarily feed on tiny krill, consuming around 40 million daily, equivalent to the weight of five cows. Toothed whales, which include sperm whales, belugas, narwhals, dolphins, and porpoises, eat fish, squid, and sometimes other mammals, with some killer whales known to hunt seals.
🐋 Exceptional Abilities and Records of Whales
This paragraph highlights the extraordinary capabilities and records held by whales. It mentions the Cuvier's beaked whale's ability to hold its breath for over two hours, the bowhead whale's longevity with an average lifespan of 268 years, and the sperm whale's impressive brain size, which is the largest in the animal kingdom. Additionally, whale calls are noted for being the loudest of any creature, able to travel hundreds of kilometers underwater.
🛡️ Conservation Efforts and Hope for the Future
The script concludes by discussing the history of whaling and the impact on whale populations, which led to some species being close to extinction. It acknowledges the global hunting ban in the 1960s and notes the recent increase in the numbers of blue and humpback whales, offering hope for the continued existence of these majestic creatures in the wild.
Mindmap
Keywords
💡Blue Whale
💡Mammal
💡Baleen
💡Krill
💡Toothed Whales
💡Sperm Whale
💡Narwhal
💡Killer Whale
💡Whale Hunting
💡Conservation
💡Intelligence
Highlights
The biggest animal that ever lived is the blue whale, not a dinosaur, and it is still alive today.
A blue whale's tongue alone is heavier than an elephant.
Blue whales can weigh up to 130 tons and measure 30 meters in length.
A blue whale's heart is the size of a small car and beats once every 10 seconds.
Whales are mammals, not fish, and are more closely related to humans than to fish.
Whales' ancestors lived on land around 50 million years ago, as evidenced by their hip bones.
There are over 80 different species of whales, varying in shape and size.
Baleen whales have comb-like structures in their mouths to filter food like krill from the water.
Baleen whales can eat around 40 million krill a day, equivalent to the weight of five cows.
Toothed whales, including sperm whales, belugas, narwhals, dolphins, and porpoises, have teeth and mainly eat fish and squid.
Killer whales, the largest species of dolphin, hunt other marine mammals like seals.
The kuvia's beaked whale can hold its breath for over two hours, the longest of any mammal.
The bowhead whale lives an average of 268 years, making it the oldest living mammal.
Whale calls are the loudest of any creature on Earth and can be heard underwater for hundreds of kilometers.
The sperm whale has the largest brain in the animal kingdom, around six times the size of a human brain.
Whales are considered some of the most intelligent animals on Earth.
Whale populations have been recovering since the global hunting ban in the 1960s.
The number of blue and humpback whales has been increasing in recent years.
Transcripts
do you know what the biggest animal
that's ever lived is
[Music]
no it's not a dinosaur it's alive today
and its tongue alone is heavier than an
elephant
in this video we are going to find out
all about some of the biggest animals
ever
whales
weighing in 130 tons and measuring 30
meters the blue whale is bigger than
even the most ginormous of the dinosaurs
they can grow longer than two buses and
weigh the same as three lorries
a blue whale's heart is so big that it's
the size of a small car
it only beats once every 10 seconds and
a fully grown person could swim down his
arteries
but what is a whale and why are they so
huge
[Music]
wild bites whales
with fins and flippers you might think a
whale is a really really big fish
but you'd be wrong they don't look much
like it but whales are actually mammals
just like us
that means they are warm blooded they
breathe air
and baby whales need their mother's milk
to survive
so they're more closely related to
humans than fish
so why do they live in the sea
well around 50 million years ago the
ancestors of wales used to live on the
land we can tell this by looking at
their skeletons
believe it or not even though they don't
have any legs they still have tiny hip
bones left over from their prehistoric
relatives
[Music]
over millions of years the water which
gives their vast bodies more support
than air has allowed them to grow into
over 80 different species of all shapes
and sizes
there are two major types of whale and
their difference can be found if you
look inside their mouths
some whales have teeth
but others have weird hairy structures
called baleen
these giant combs act like a big sieve
filtering food out of the water
but even though these baleen whales are
absolutely enormous one of their
favorite meals is one of the smallest
animals in the ocean a little shrimp
called krill
most krill only grow to be about one or
two centimeters long so whales have to
eat a lot of them in fact they eat
around 40 million krill a day that's
equivalent in weight to about five cows
the other family of whales are called
toothed whales
and if you look in their mouths you'll
find you guessed it teeth
this family includes the massive sperm
whale the all-white beluga whale the
bizarre looking narwhal with its huge
unicorn-like tusk
and even dolphins and porpoises
toothed whales mainly eat fish and squid
but some like the killer whale hunt
other mammals like seals
some killer whales like these have
learnt to launch themselves onto beaches
to catch the seals in the shallows
they may be one of the biggest predators
in the ocean but despite their ominous
name killer whales are actually the
largest species of dolphin in the world
and have never killed a human in the
wild
there's a lot more to whales than just
their size they smash all sorts of other
records too
the kuvia's beaked whale can hold its
breath for over two hours which is the
longest of any mammal
this rarely seen bowhead whale in
northern canada is the oldest living
mammal clocking up an average of 268
years
a whale of that age today would have
been born before the invention of the
steam train the english dictionary and
the founding of the united states
whale calls are the loudest of any
creature on the planet and can be heard
underwater for hundreds of kilometers
and the sperm whale has the largest
brain in the animal kingdom it's around
six times the size of humans and so
whales are thought to be one of the most
intelligent animals on earth
despite all these amazing abilities for
many years whales were heavily hunted by
people and some species remain close to
extinction even today
but thanks to a global hunting ban in
the 1960s in the last few years the
number of blue and humpback whales are
finally starting to increase
given his hope that these majestic
creatures will be seen in the wild for
many more years to come
[Music]
you
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