Odisha News, Odisha Latest news, Odisha Daily - OrissaPOST
  • Home
  • State
  • Metro
  • National
  • International
  • Business
  • Opinion
  • Feature
  • Timeout
  • Entertainment
  • Sports
  • Sci-Tech
  • Others
    • COVID-19
    • Today’s Pic
  • Home
  • State
  • Metro
  • National
  • International
  • Business
  • Opinion
  • Feature
  • Timeout
  • Entertainment
  • Sports
  • Sci-Tech
  • Others
    • COVID-19
    • Today’s Pic
No Result
View All Result
OrissaPOST - Odisha Latest news, English Daily -
No Result
View All Result

Crocodile makes herself pregnant in first such case: Study

PTI
Updated: June 9th, 2023, 08:30 IST
in Feature
0
Share on FacebookShare on TwitterShare on WhatsAppShare on Linkedin

New Delhi: The first ever known case of a crocodile who made herself pregnant without male intervention has been identified at a zoo in Costa Rica, scientists say.

The crocodile produced a foetus that was 99.9 per cent genetically identical to herself, the researchers said.

The team, including researchers at Virginia Polytechnic Institute and State University in the US, noted that the finding is the “first documentation” of this very rare mode of reproduction in a crocodile species.

Over the past two decades, zoologists have increasingly documented the vertebrate reproductive strategy of facultative parthenogenesis (FP) in which females lay eggs or give birth without mating.

A wide range of organisms including birds, reptiles like lizards and snakes as well as some fishes, have been shown to reproduce in this strange manner, the researchers said.

The study, published recently in the journal Biology Letters, documented the first evidence of FP in the American crocodile, Crocodylus acutus.

The latest research is based on the 2018 observation of a female crocodile held in captivity for 16 years, which laid a clutch of 14 eggs, one of which contained a fully formed, but stillborn, foetus.

The rare reproductive strategy in crocodilian species has particularly intrigued scientists as these organisms lack sex chromosomes and their sex determination is controlled by the temperature in which eggs develop and hatch.

Scientists say the trait might be inherited from an evolutionary ancestor, so dinosaurs might also have been capable of self-reproduction.

“This evidence offers tantalizing insights into the possible reproductive capabilities of extinct archosaurian relatives of crocodilians, notably the Pterosauria and Dinosauria,” the authors wrote in the study.

The crocodile who laid the egg was obtained when she was two years old and was kept apart from other crocodiles for its entire life in Parque Reptilania.

Researcher Warren Booth, who works at Virginia Tech in the US, and colleagues analysed the foetus and found that it was over 99.9 per cent genetically identical to its mother, confirming that there was no male intervention in its birth.

“Building on previous studies, the data advances our understanding of the distribution of FP in vertebrates, particularly in that all previous studies relate to species whose sex is genetically determined,” the authors added.

PTI

Tags: Costa RicacrocodileVirginia Polytechnic Institute and State UniversityVirginia TechWarren Booth
ShareTweetSendShare
Suggest A Correction

Enter your email to get our daily news in your inbox.

Related Posts

SSC MTS result 2023

SSC MTS result 2023: Check important SSC guidelines

October 5, 2023
Photo Credit: Ask Astrology

Horoscope October 5: Aries to have platonic affair, busy day for Gemini

October 5, 2023
How to keep your sandal safe

Viral video: How to keep your sandals safe at temple? Internet reacts

October 5, 2023
Human brain

Novel 3D printing method shows promise for repairing brain injuries

October 4, 2023
Pic Credit: Astrology.TV

Horoscope October 4: Marital life will blossom for Aries, wonderful day for Leo

October 4, 2023
Pic Credit: eatthis.com

Woman dies after eating chocolate given by palm reader who predicted her death

October 3, 2023

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

OrissaPOST epaper Sunday POST OrissaPOST epaper

Click Here: Plastic Free Odisha

No Content Available

Archives

Editorial

Proxy War 

Mohamed Muizzu (AFP)
October 4, 2023

Bad news comes for India from Maldives. The Indian Ocean archipelago occupies a crucial position in the geopolitics of the...

Read more

Peso Vs Dollar

October 3, 2023

The ‘pink tide’ that swept across much of Latin America in the past few months installing Leftist governments in Brazil,...

Read more

‘Scandals’ In China

October 2, 2023

Something is seriously wrong in China. Even as it goes on testing India’s military mettle and teasing the political leadership...

Read more

Discrimination

October 1, 2023

Four centuries ago, the ambassador Sir Henry Wotton defined a diplomat as “an honest gentleman sent to lie abroad for...

Read more
  • Home
  • State
  • Metro
  • National
  • International
  • Business
  • Opinion
  • Feature
  • Sports
  • Sci-Tech
  • About Us
  • Advertise
  • Contact Us
  • Career
Developed By Ratna Technology

© 2020 All rights Reserved by OrissaPOST

  • Home
  • Metro
  • State
  • National
  • International
  • Sports
  • Business
  • Entertainment
  • Feature
  • Opinion
  • Sci-Tech
  • COVID-19
  • Today’s Pic
  • About Us
  • Contact Us
  • Career
  • Facebook
  • Twitter

© 2020 All rights Reserved by OrissaPOST