Sign Up

Have an account? Sign In Now

Sign In

Forgot Password?

Don't have account, Sign Up Here

Forgot Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

Have an account? Sign In Now

You must login to ask a question.

Forgot Password?

Need An Account, Sign Up Here

Please briefly explain why you feel this question should be reported.

Please briefly explain why you feel this answer should be reported.

Please briefly explain why you feel this user should be reported.

Sign InSign Up

GUTIBUZ

GUTIBUZ Logo GUTIBUZ Logo

GUTIBUZ Navigation

  • Home
  • Users
  • Communities
  • Groups
Search
Ask A Question

Mobile menu

Close
Ask a Question
  • Home
  • Groups
  • Create group
  • Categories
    • Beauty
    • Career
    • Computer Science
    • Culture
    • Earn Money
    • Education
    • Electrical & Electronics
    • Energy
    • Engineering
    • Entertainment
    • General Knowledge
    • Health
    • History
    • Medical Science
    • Motivation
    • News
    • Politics
    • Public Figure
    • Religion
    • Science
    • Sports
    • Technology
  • Users
  • Questions
    • Ask Question
    • Answers
    • Best Answers
  • Add Post
  • Notifications
    • Gift of the site - 10 Points.May 12, 2025 at 2:52 am
    • Gift of the site - 10 Points.May 12, 2025 at 2:28 am
    • Gift of the site - 10 Points.May 12, 2025 at 12:39 am
    • Gift of the site - 10 Points.May 12, 2025 at 12:29 am
    • Gift of the site - 10 Points.May 12, 2025 at 12:28 am
    • Show all notifications.
  • Messages
  • Favorites
  • Followers Questions
  • Blog
  • Badges
  • Help
  • Home
  • Users
  • Communities
  • Groups
Home/ Questions/Q 1175
Next
Answered
Hasan Mahmud
  • 1
Hasan MahmudExpert
Asked: January 9, 20232023-01-09T10:11:20+06:00 2023-01-09T10:11:20+06:00In: Science

Why is there no land animal as big as dinosaur in the present time?

  • 1
Why is there no land animal as big as dinosaur in the present time?
dinosaurdinosaur animal
  • 1 1 Answer
  • 35 Views
  • 0 Followers
  • 0
Answer
Share
  • Facebook

    1 Answer

    • Voted
    • Oldest
    • Recent
    1. Best Answer
      Jeion Ahmed Expert
      2023-01-09T10:14:56+06:00Added an answer on January 9, 2023 at 10:14 am

      The Mesozoic Era (250 million years ago) lasted about 200 million years through the Triassic and Jurassic periods, ending with the Cretaceous Era 65 million years ago when a meteorite hit the Earth. With this comes the end of the reign of dinosaurs on earth. The continents were not separate as they are now, the whole world was one continent called Pangea.

      Then the land destroyed by the meteorite was covered in desert. The climate was hot and dry. Then only reptiles and mammals roamed the earth. The temperature gradually started to drop, but the carbon dioxide levels in the air were still high. Plants grow slowly. Plant species such as ferns tend to be more widespread.

      The final phase of the Mesozoic era was the Cretaceous period. At this time, the continents began to separate from each other. As a result, dinosaurs evolved and species experienced extreme diversity. Ecosystems gradually become stable and complex. This led to the development of mammals.

      Ecosystems during the Mesozoic Era were not as complex as they are today. Dinosaurs were so large because of the adaptation of their bodies to the climate and ecosystem. At times during the Mesozoic Era, carbon dioxide levels reached 3-5 times normal levels today. Due to this the plants grew in abundance. In other words, there would have been an explosion of plant life on the planet. Along with this, the oxygen level also increased. At that time there was an abundance of food in the world, but the number of its predators was few.

      According to this theory, extinct ecosystems and such climates caused dinosaurs to grow so large. Looking at the present, you can see how complex the current ecosystem is. And how damaged the Earth’s climate is. This is mainly the reason why no animal in the present world is as big as dinosaurs. There are many other theories behind the size of dinosaurs but this theory is more convincing.

      • 2
      • Reply
      • Share
        Share
        • Share on Facebook
        • Share on Twitter
        • Share on LinkedIn
        • Share on WhatsApp
    Leave an answer

    Leave an answer
    Cancel reply

    Browse

    Sidebar

    Ask A Question

    Stats

    • Questions 1k
    • Answers 1k
    • Posts 62
    • Best Answers 126
    • Popular
    • Answers
    • Hasan Mahmud

      I don't sit in worship like before. I don't get ...

      • 53 Answers
    • Etha Logan

      How are lonely planets formed?

      • 4 Answers
    • Jeion Ahmed

      Which is the oldest religion in the world ?

      • 4 Answers
    • Jannat

      Is it possible to do anything govt/private with 2.45 CG ...

      • 3 Answers
    • Jannat

      How much does solar energy cost per kwh?

      • 3 Answers
    • qwddmmbmcw.j
      qwddmmbmcw.j added an answer Aubreeana Dunch April 22, 2024 at 12:45 pm
    • Ehcxpv.hwtcmwt
      Ehcxpv.hwtcmwt added an answer Lux Dodson April 8, 2024 at 9:16 am
    • bNuSXO.mphcbm
      bNuSXO.mphcbm added an answer Salem Carter April 1, 2024 at 3:05 pm
    • Afrin
      Afrin added an answer Astronomers use a variety of telescopes, including optical telescopes, radio… March 31, 2024 at 10:46 pm
    • Afrin
      Afrin added an answer Dark matter is a mysterious form of matter that does… March 31, 2024 at 10:45 pm

    Explore

    • Home
    • Groups
    • Create group
    • Categories
      • Beauty
      • Career
      • Computer Science
      • Culture
      • Earn Money
      • Education
      • Electrical & Electronics
      • Energy
      • Engineering
      • Entertainment
      • General Knowledge
      • Health
      • History
      • Medical Science
      • Motivation
      • News
      • Politics
      • Public Figure
      • Religion
      • Science
      • Sports
      • Technology
    • Users
    • Questions
      • Ask Question
      • Answers
      • Best Answers
    • Add Post
    • Notifications
      • Gift of the site - 10 Points.May 12, 2025 at 2:52 am
      • Gift of the site - 10 Points.May 12, 2025 at 2:28 am
      • Gift of the site - 10 Points.May 12, 2025 at 12:39 am
      • Gift of the site - 10 Points.May 12, 2025 at 12:29 am
      • Gift of the site - 10 Points.May 12, 2025 at 12:28 am
      • Show all notifications.
    • Messages
    • Favorites
    • Followers Questions
    • Blog
    • Badges
    • Help

    Footer

    GUTIBUZ

    About

    Gutibuz is a social questions & Answers Engine which will help you for any questions support and establis your community and connect with other people.

    ABOUT US

    • Login
    • Signup
    • About Us
    • Contact Us
    • Buy Points

    QUICK LINKS

    • Groups
    • Communities
    • Users

    FOR USERS

    • Blog
    • Privacy Policy
    • Terms & Conditions
    • Help

    Follow Us

    Footer 1

    © 2023 Higlun