Why are animals in the ocean larger than land animals?

Why should life in the ocean be bigger than life on land? After knowing the reason, it turned out that it would be easier to grow in the sea.

The living environment is large

As we all know, the area on the ocean is 7 parts ocean and 3 parts land. Then the living environment of marine life is generally much larger than that of our land life. And the oldest creatures in history were found in the sea, and they have developed much longer than humans, and many of their locomotion methods are swimming.

Creatures on land, on the other hand, crawl or walk, so there is a big difference between the two environments affected by gravity. In addition, the marine ecological environment is relatively stable, and the temperature difference is not so large, so it is easy for organisms to grow. The ocean space is also large enough, so it is easier for marine life to live in and space than on land.

There is also a lot of food in the ocean.

Huge marine animals

The largest animal on land is known to be the elephant, but compared to marine life, the elephant is so small, and the largest marine animal is the blue whale. He can weigh up to 180 tons, which is equivalent to more than 20 very large elephants. So we all know how huge sea creatures are as mammals, and how small we are.

And in zoology, this is also called gigantism. However, some people have raised doubts because the snails in the sea are relatively small.

Bone causes

Some people say that we don't have to think about why marine animals are big, but why land creatures are so small. The size of our terrestrial creatures is limited by bones. Because our bones can't bear too much weight, but in the ocean, the burden on the bones is liberated due to buoyancy.

Then there is no restriction on the size of the body, and you can grow as you like. They are also very efficient at eating, they can eat large amounts of food quickly and without much physical exertion. Larger body size can also slow down the rate of their metabolism, which is why they are huge.

It is also possible that the oxygen content in the air is higher in the ocean. However, it should not be fully tenable at this time.

Because the ocean is larger than the land, and there are more species of life in the sea than on land, the ocean is more suitable for growing large biological species, such as whales.

Because they have evolved to survive in seawater for a long time, it is estimated that it will be difficult for land creatures to move if they grow so large.

The world is made up of 70% of the oceans and 30% of the landmass. In the vast ocean, there are many large creatures. The size will be larger than on land. This is also one of the manifestations of biodiversity.

I really don't know, I haven't understood, and many people have big questions about this issue.

External factors such as temperature, ocean currents, and buoyancy allow marine creatures to survive on the seabed without worrying about fear, and the effect of buoyancy allows them not to suffer bone pain caused by gravity, and then they grow bigger. Animals on land need to hunt for food or avoid predators, so they must gradually lose their body and weight and become much smaller, coupled with the stability of the marine environment, so that the size and weight of the creatures have increased. <>

The suitability of the temperature allows marine life not to endure severe cold and heat, and the food chain and ecological environment in the ocean are relatively stable, and animals have strong concealment and convenience when looking for food and hiding from predators. In order to digest better, the size of the various organs in the body will be much larger, and the sea creatures need to wait for a long time after eating before the next hunt, which makes them have to increase in size to store food and calories to sustain life. <>

In addition, the currents present in the ocean allow these creatures to absorb more food and nutrients, and the methods of hunting in the ocean are relatively simple, without overly complicated hunting movements and excessive speed, so the larger the size, the stronger the survival ability in the ocean. On the contrary, even if it has strong running speed and escape ability, it is easy to be swallowed by some huge creatures if it is too small, and the survival mode of natural selection has greatly changed the evolution of marine life. <>

Finally, the buoyancy of the ocean allows these animals to avoid the pain of being too large, and the large creatures are more intimidating in the ocean. However, the creatures on land need to make escapes, and they are too large to be clumsy, and they suffer physical pain, which makes it difficult for them to grow larger. These factors determine their size, and this can be understood through the observation of natural laws and real conditions.

The largest animal in the ocean is the blue whale.

The blue whale lives in the ocean and is the largest animal in the world, which can be called a giant in the animal world. They have a fish-like body with a propelling flat tail, making them ideal for living in the water, and whales look like fish, but they are mammals because they are viviparous and nurse their offspring with milk.

The whale is a veritable giant of the sea, his body can grow up to 30 meters long, the size of five or six houses, and his tongue weighs a ton.

The blue whale is not only the largest cetacean, but also larger than the largest dinosaur ever lived on Earth, and is the largest of all animals known to have lived since ancient times, with a general body length of 2400-3400 cm and a weight of 150,000-200,000 kg.

That is, it weighs as much as more than 25 African elephants, or 2,000-3,000 people combined. Fortunately, due to the buoyancy of the ocean, it does not need to work as hard to support its weight as a land animal, and its large body helps to maintain a constant body temperature.

Blue whales feed on plankton and eat krill as a staple. A blue whale consumes 2-5 tons of food per day. Swimming speeds range from 2 to 6 km h when feeding, 5 to 33 km h during migration, and up to 20 to 48 km h when being chased.

1.In terms of temperature, the marine ecological environment is more stable than the terrestrial ecological environment, so organisms are easy to grow.

2.Terrestrial organisms are affected by the structure of their bones and their ability to bear too much, while marine organisms can rely on the buoyancy of the seawater to reduce the bearing capacity of the bones of organisms.

3.The ocean space is large.

4.The living space of marine organisms is three-dimensional (two-dimensional for land living space), and it is easier to avoid enemies.

5.The ocean is rich in food.

6.The currents in the ocean bring sufficient nutrients and feed, and the ingestion of organisms can reduce the amount of energy spent on feeding, which can be used for growth or reproduction.

7.The oceans have been exploited less than the land.

The blue whale is the largest in size. And blue whales come from the deep sea and are marine creatures, but if you ask what creature is the biggest, it is mushrooms, because the volume of mushrooms has reached the size of more than 5,000 blue whales.

The largest animal found so far is the blue whale. It comes from the deep sea, and its body length reaches 3400 centimeters. It is the largest living deep-sea animal in the world.

The animals in the world's oceans are the largest, such as the blue whale and the king squid, all of which come from the deep sea.

It is a blue whale, it comes from the deep sea, the blue whale is light blue or rat gray, up to 33 meters long, weighs 181 tons, can reach 2,000 kilograms with a tongue alone, and can stand more than 50 people.

As far as is known, the largest animal in the sea is the blue whale, which is also the largest creature and mammal on the planet today. Blue whales can reach 22 to 33 meters in length and weigh up to 180 tons, which is equivalent to the weight of 33 African elephants or the weight of 2,000 to 3,000 people combined. If you're interested in the biggest animal in the sea, read on.

1. Bull sharks: Bull sharks can reach feet in length and weigh up to 500 tons. Not only is it huge, but it also has a ferocious temperament and attacks humans.

2. Lion's mane jellyfish: The lion's mane jellyfish can reach more than 2 meters in length, and the longest tentacle can reach more than 30 meters, making it the largest among jellyfish.

3. Sperm whale: The longest sperm whale can be up to 20 meters long and weigh up to 45 tons. Its head is the largest in the animal kingdom, occupying three-quarters of its body.

4. King squid: The body length of the king squid can reach 11 meters, making it the largest invertebrate in the world. It lives in the deep sea of Antarctica and has large, glowing eyes.

<> large marine creatures have the double-snouted anterior manta ray. It is a fish that resembles a bat, reaching a body length of 5 to 9 meters and weighing up to 3 tons. They generally prefer to live under water of about 120 meters, and will go to the warm shore in search of food.

The above is the answer to the question of the largest moving group in the sea, I hope it will help you.

Hello, marine animals and land animals have a lot of connections and interact with each other. First, species in ecosystems are interdependent, both marine and terrestrial ecosystems. For example, animals on land need resources such as oxygen, water and weather from the ocean, and organisms in the sea also need resources such as oxygen, water and organic matter from land.

In addition, both terrestrial and marine ecosystems are affected by human activities, such as marine pollution, climate change, overfishing, etc., which can negatively affect the ecology of both terrestrial and marine ecosystems. In addition, some species can switch between land and sea, such as seagulls and sea turtles, which can migrate back and forth between the sea and land. There are also species such as platypus and sea lions, among others, that can both swim in the water and walk on land.

In short, although marine animals and land animals live in different environments and lifestyles, there are complex connections and interactions between them, which jointly maintain the ecological balance of the entire earth.