The longest living blue whales were found in 2007. They measured a whopping 45 metres long and weighed over 100 tonnes, making them bigger than any other known animal on Earth. Blue whales are also one of only two species that can grow to be more than 50 feet tall!
How many blue whales live today?
There may have been as few as 20,000 blue whales left at the end of the 19th century but there are now thought to be around 200,000 worldwide – although this number has declined since whaling began. It’s estimated that about half of these live off Canada or Alaska while others migrate between Mexico and Japan.
Can a megalodon eat a blue whale?
Yes, if it could catch one. The prehistoric shark was up to 40 ft long and would easily swallow an adult blue whale whole. However, they probably couldn’t digest its blubber so would just regurgitate it later.
What do scientists know about blue whales’ brains?
Blue whales have huge brains compared with their body size: each brain weighs around 1 kg. This makes sense because they need such large bodies for hunting fish. Scientists don’t yet fully understand how they use all those neurons though. One theory suggests that they might communicate using clicks which travel through water rather than air like human speech does.
Why did some people think blue whales had no vocal chords?
In 1776, British naturalist John Hunter reported seeing “a kind of bagpipe made out of bone, into which he put his hand and blew very loud sounds”. He believed that this instrument must come from another world where creatures didn’t breathe air. In 1846, American scientist Samuel Latham Mitchill described hearing similar noises during a trip along the Atlantic coast. His report led to the belief that whales used gills instead of lungs, something that wasn’t proven until much later.
Where do blue whales spend most of their time?
Whales tend to stay near coastal waters because food is easier to find here. But they will sometimes venture further offshore when searching for prey. These migrations take place every year, usually travelling northwards towards warmer seas before heading south again once winter arrives.
Whale watching tours offer visitors the chance to see these giants close-up. Many tour operators operate trips from New England too. You’ll get to watch the whales hunt for krill, squid and small fishes by diving down deep under the surface of the sea. Then you’ll enjoy being able to view the animals from above as they swim back up to the surface.
Are blue whales endangered?
No, not anymore. Once hunted almost to extinction, numbers have increased dramatically thanks to conservation efforts. Today, there are thought to be around 200 000 individuals alive worldwide. Although there’s still controversy surrounding whether this figure represents sustainable levels of population growth, experts agree that things are looking good for the future.
What is the largest whale to ever live?
The largest animal ever to have lived is the blue whale. The analysis of the fossil on the shore of an Italian lake hints at when and how the blue whale became such a large animal. It seems that in ancient times, blue whales were smaller but grew larger over millions of years. They may have reached sizes of 50 metres or more. Blue whales today can grow even bigger; males average 70 m, while females reach 80 m.
Did humans kill off the giant mammals?
It’s hard to say exactly what happened to the last few populations of blue whales. Some researchers believe that humans played a role in driving them extinct. Others argue that climate change caused problems first, then hunters arrived to exploit the situation. Whichever explanation is correct, we’re left wondering why only certain species survived. If climate change really was the main cause, why weren’t other marine life forms affected?
Is a Megalodon bigger than a blue whale?
The blue whale is a lot bigger than that. Megalodon was 60 feet long, while the blue whales were 80 to 100 feet long. The Megalodon has an estimated mass of 80,000 lbs., but the Blue Whale has an adult mass of over 300,000 lbs. So yes, the Megalodon would definitely outweigh a Blue Whale!
What was bigger than the blue whale?
But now, a newly discovered ichthyosaur could give this normal-looking reptile a claim to fame as the largest animal that ever existed. If size estimates are accurate, this creature could have measured up to 26 meters (85 feet) long for comparison, blue whales top out around 25 meters (82 feet). This new discovery also shows us just how much bigger reptiles got during their reign. Back in those days, it seemed like dinosaurs ruled supreme. Nowadays, however, scientists think that fish took control of the oceans.
Where did all the megafauna go?
In recent centuries, human activity has driven many creatures into decline. We’ve killed most of our own kind, which means that some animals have lost their natural predators. In addition, hunting has taken its toll on wildlife. As well as killing off entire species, people have been taking away their habitats. For example, land development has destroyed forests and grasslands where animals used to roam freely. And pollution has made water unsafe to drink.
How big is a blue whale brain?
The Evolutionary Significance of Brain Size. One of the most striking differences between nervous systems is their size (measured as weight or volume) – the brain of a blue whale weighs up to 9 kg while that of a locust weighs less than a gram. While there is no obvious evolutionary advantage to having a very small brain, it does seem likely that increased intelligence will be associated with greater brain size. However, the correlation between brain size and cognitive ability is not always clear cut: elephants have brains about twice as heavy as ours yet they lack any real intellectual capacity. A possible reason for this discrepancy might lie in the fact that the elephant’s neocortex occupies almost half of its total cerebral cortex. On the other hand, birds have relatively tiny brains compared to body size, yet their cognition appears quite sophisticated. Thus, although the relationship between brain size and intellect remains unclear, one thing is sure: evolution favours large brains.
What hunted Megalodon?
Mature megalodons likely did not have any predators, but newly birthed and juvenile individuals may have been vulnerable to other large predatory sharks, such as great hammerhead sharks (Sphyrna mokarran), whose ranges and nurseries are thought to have overlapped with those of megalodon from the end of the Miocene and …
What animal is bigger than a whale?
Whale’s aren’t the biggest living things by far. That title goes to the blue whale, who can reach lengths of more than 30 metres. But even so, they’re only 1/10th the length of another giant – the sauropod dinosaur Brachiosaurus, which reached heights of 20m and weighed hundreds of tonnes. How do you measure something that huge? Well, we use tape measures, obviously. To get an idea of what these beasts looked like, check out this video of a live blue whale being filmed underwater. It’s amazing stuff.
Which animal eats the most food per day?
A lion needs to eat at least 2kg of meat every single day if he wants to stay healthy. This equates to around 10 kilos over 24 hours. The average male African Lion consumes 3-4 kilograms of flesh each night. Lions also need a lot of energy during the daytime because they spend much time patrolling their territory. They hunt down prey using stealth and speed. Their powerful jaws enable them to crush bones easily.
Why don’t whales sleep?
It seems strange that mammals should evolve to sleep when they could just go without eating. After all, humans often feel sleepy after meals, especially fatty ones! There are two main reasons why whales cannot simply skip sleeping. Firstly, they must rest regularly throughout the year to avoid overheating and losing heat through their skin. Secondly, sleep helps regulate hormones and keep blood sugar levels stable. Without regular periods of deep relaxation, hormone production would become erratic and cause problems such as obesity.
Do animals dream?
Scientists used to think that dreams were purely human phenomena, but recent research has shown that many species experience REM dreaming too. In some cases, scientists believe that animals dream about past events, perhaps replaying memories in order to learn new skills. For example, dolphins remember where they found fish that had previously eluded them, suggesting that they replay the memory until they perfect it. Scientists have also observed wild cats hunting mice under water, and captive chimpanzees catching flies. These observations suggest that animals may dream about future events.
What is the biggest extinct animal in the world?
Today Earth is home to the heaviest animal that has ever lived: the blue whale. As far as we know, no past animal has ever weighed more. However, there’s evidence that dinosaurs once ruled our planet. Some fossils indicate that one particular group grew up to be nearly 200 feet long, weighing several hundred tons. Although they’re now gone forever, thanks to their size, weight and strength, these creatures might have dominated life on land for millions of years. We still haven’t discovered anything close to this kind of mass extinction today.
Where does the word “elephant” come from?
The English language borrowed its name “Elephas maximus” from Ancient Greek. Elepha means elephant and maximus means greatest or maximum. So elephants really do deserve their name – they’ve got the biggest brains of any mammal. If you thought that elephants have large ears, then you’d better think again. An adult Asian Elephant actually has smaller ears than other members of his family. He uses those extra-large eyes to spot predators lurking nearby. Elephants also have very sensitive trunks that help them communicate with others.
What is the IQ of dolphins?
Dolphins can count and recognise themselves in mirrors. It’s not known how smart they are compared to us, but most experts agree that they’re probably smarter than dogs. Dolphins are highly social beings who live together in groups called pods. Pods usually consist of mothers and calves along with older siblings. Youngsters stick closely with their parents and playmates while adults hang out separately. Most dolphin societies include both males and females; however, only the alpha female leads her pod. She controls everything from feeding habits to mating decisions. Her position within the community gives her access to food resources and mates. Other dolphins follow her lead by doing what she says.
What is the IQ of a whale?
Using this scale, researchers have found that humans have an EQ of 7, while killer whales have an EQ of about 2.5, according to the news outlet. Still, some professionals are not so sure that whales are more intelligent than humans. They argue that intelligence isn’t necessarily linked to EQ because people don’t always use logic when making decisions. Also, even though whales seem to understand things like numbers and time, they lack the ability to speak and write. Researchers say that if they did possess such abilities, they would likely show signs of higher cognitive function.
Why aren’t sharks afraid of bright lights?
Sharks have been around since before the first mammals walked the earth. Their bodies contain special cells which allow them to see well at night without being blinded by light. The reason why sharks don’t fear bright lights comes down to evolution. Sharks evolved into their current form over 400 million years ago, meaning that they’ve existed for much longer than Homo sapiens. In fact, many scientists believe that sharks were among the earliest animals to evolve complex nervous systems. This makes sense given that fish swim through water all day every day. Since they spend so much time under the surface, it stands to reason that they’d need something to protect them from the sun.