Why are creatures living in the ocean often primarily carnivorous?

Introduction Why are creatures living in the ocean often primarily carnivorous? Humans do not eat the meat of carnivores, including sea creatures and birds, but that of mammals. we need to know

Why are creatures living in the ocean often primarily carnivorous?

Humans do not eat the meat of carnivores, including sea creatures and birds, but that of mammals. What you need to know is that in ancient times, human beings could only eat the animals they hunted and the fruits they harvested, unlike today where we order food in depending on taste.

In this case, when humans go hunting, they will obviously hunt docile and less aggressive herbivores, such as cattle, sheep, etc. Of course, smaller and less aggressive birds will also be hunted. For example, the ancestors of chickens are jungle birds. Jungle birds have a mixed diet, feeding on both plant fruits and small insects. does not have strong attack power, so it will also become human food.

For humans, provoking very aggressive carnivores is obviously a difficult task.ate. On the one hand, carnivores have strong attack power, and when hunting them, they are more likely to become the opponent's prey. hunting is successful, the cost and physical strength are much higher than those of herbivores of the same size. Therefore, humans are grateful that carnivores do not come to cause trouble for humans, let alone take the initiative to cause trouble for carnivores. Humans are not carnivorous and have the advantage of reducing the spread of disease. We know that herbivores eat plants and that it is difficult for germs in plants to infect animals. For example, molds that infect plants rarely infect cattle or sheep, so herbivores carry fewer germs.

The food of carnivores is herbivores, which leads to more germs in carnivores. Studiesshowed that when lions lick their cubs, they invisibly bring germs to their cubs. Lions therefore carry more antibodies in their bodies. rarely die even if exposed to these germs.

However, humans do not have antibodies against these germs. If humans feed on carnivores, germs from carnivores can infect the human body, leading to increased human mortality. It can be seen that hunting carnivores is a very unprofitable business, which is why in ancient times carnivores were not included in the human diet list. Around 10,000 years ago, agriculture began to appear and humans began to domesticate plants and animals. Our diet today mainly comes from animals domesticated during this period, such as: chickens, ducks, cattle, sheep, etc. .

It’s actually bywhich we do not have the means to raise them. We know that the food of carnivores is meat, and that the cost of meat is very high, and that humans are reluctant to eat it, let alone domesticate carnivores. . The deeper reason is that Energy is fluid in nature and energy will continue to decrease during flow. When it reaches the trophic level of carnivores, there is not much left energy. For example: one hectare of land can feed 10 sheep, but 10 sheep cannot feed 1 tiger.

Due to the high cost of food, it is not profitable to domesticate carnivores. Humans can obtain much higher energy from directly eating 10 sheep than from domesticating tigers. Therefore, carnivores do not appear on humans' domestication list at all. Of course, there is one exception: the wolf, which was domesticated byhumans to make dogs. However, research shows that because dogs spend a lot of time around humans, the microorganisms in their intestines become more adapted to digesting starchy foods, such as wheat, rice, etc. in humans. Because dogs are omnivores and can participate in hunting and feed on human remains, they live closely with humans. But for a long time, dogs also played the role of food, but today many humans are opposed to eating dogs, and the dog meat trade has gradually been suppressed.

  • Popular Focus
  • Where is the cheapest battery wholesale?

    Where is the cheapest battery wholesale in Tangxia, Sanyuanli, Baiyun District? There is an enterprise specializing in the independent production of electric vehicles in Tangxia, Sanyuanli, Baiyun District, Baiyun Sanyuanli Avenue, Baiyun Sanyuanli Street
    08-02
  • Understanding 18650 Voltage: A Comprehensive Guide to Lithium-Ion Battery Power

    Lithium-ion batteries have become the backbone of modern portable electronics, providing the energy needed for everything from smartphones to electric vehicles. Among the various types of lithium-ion batteries, the 18650 battery stands out as a popular ch
    08-27
  • What are the materials of the negative electrodes of lithium batteries?

    What are the materials of the negative electrodes of lithium batteries? The main commercial applications of lithium batteries include graphite, which is a sheet of copper used to guide current and which does not react. another safe
    08-02
  • The difference between 18500 and 26500 batteries

    What is the difference between 18500 and 26500 batteries? The answer above is 18650. The person asking the question should ask what is the difference between 18505 and 26500 batteries. In the case of Fuant ER1
    08-02
  • What does 3.7V 80mAh written on a lithium battery mean?

    What does 3.7V 80mAh written on a lithium battery mean? 3.7 V, 80 mA = 0.08 A, H means 1 hour, or 3600 seconds. Taken together, it is
    08-02
  • How long does a lithium battery (cell phone battery) last?

    How long does a lithium battery (cell phone battery) last? The lifespan of mobile phone batteries, under normal conditions of use and without serious impact, the lifespan set by the manufacturer must be 5 years.
    08-02
  • Will lithium batteries explode when charging?

    Will lithium batteries explode when charged? Will lithium batteries explode when charged? Lithium battery explosions usually occur during the charging process, because the negative electrode material of lithium batteries is graphite or other carbon materi
    08-02
  • Parameters of lgdas31865 lithium battery

    Parameters of lgdas31865 lithium battery The parameters of lgdas31865 lithium battery are as follows: LGDAS31865 is a model 18650 lithium battery with a capacity of
    08-02
  • What are the main components of lithium battery electrolyte?

    What are the main components of lithium battery electrolyte? The composition of lithium battery electrolyte is shown below. 1. Ethylene carbonate: molecular formula C3H4O3. Colorless transparent liquid (>35℃), room temperature
    08-02
  • Who are the lithium battery manufacturers in Shandong?

    What are the lithium battery manufacturers in Shandong? Shandong Shengyang Power Supply Co., Ltd. and Shandong Weineng Environmental Protection Power Technology Co., Ltd. 1. Shandong Shengyang Power Supply Co., Ltd. is located in Shengyang, Qufu City.
    08-02
  • Types of drone batteries available in 2024

    Part 1. Types of drone batteries available in 2024In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in
    07-30
  • How long does it take to charge 26650 battery?

    How long does it take to charge a 26650 battery? The charging time for a 26650 battery is generally between 3 and 6 hours, but the precise time depends on the power of the charger and the capacity of the battery. in general
    08-02
  • For what?Sure, here's an article based on the phrase "For what?

    The simple yet profound question, "For what?" often serves as a gateway to deeper reflections on purpose and intention. It is a query that invites us to delve into the reasons behind actions, decisions, and circumstances that shape our lives and the wor
    08-02
  • Choosing the Right Cart Battery

    This comprehensive guide will walk you through everything you need about cart batteries, from understanding different types to making an informed purchase decision.
    08-02
  • 30mAh~500mAh 3.7 V Li-ion Battery

    Welcome to Ufine's collection of 3.7V lithium-ion batteries ranging from 30mAh to 500mAh. Explore a diverse range of compact and lightweight batteries suitable for various electronic devices,
    08-02
  • Here are 10 essential facts about drone batteries for 2024.

    10 Key Facts About Drone Battery for 2024 In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in the consumer, commercial, and industrial sectors. Below are the primary types of drone batteries avai
    08-02
  • Could you please explain the difference among IMR, ICR, INR, and IFR 18650 batteries?

    What is the Difference Between IMR, ICR, INR, and IFR 18650 Battery?In 18650 batteries, discerning the differences among IMR, ICR, INR, and IFR types is fundamental for tailored and efficient battery usage. These distinct
    08-02
  • Safety considerations for cart batteries

    Selecting the ideal cart battery is crucial for ensuring optimal performance and longevity of your electric vehicle or vaping device. This comprehensive guide w
    08-01