Tuesday, January 31, 2023

Creating liberating content

Texas Student Kobe Mcadoo...

A Brazos County grand jury handed down an indictment on Friday against the...

US: The Most Illegal...

Cuban and Nicaraguan immigrants have been arriving in large numbers in the U.S....

US National Guard Shoots...

According to officials in the United States, a member of the National Guard...

Cigarette Smoking Rates are...

Many Americans have quit smoking in the past few years. A poll on...
HomeChicago'Virgin Birth', ...

‘Virgin Birth’, At Chicago Aquarium

A female zebra shark at Chicago‘s Shedd Aquarium unexpectedly gave birth to a litter of pups without the presence of a male.
The aquarium stated that the female shark, known as Bubbles, gave birth to the pups in the same tank as several other adult zebra sharks. It was previously thought that the female shark used sperm from a male shark to reproduce.

Most invertebrates give birth without the help of a male. This process is called parthenogenesis. Before now, it was believed that sharks only resorted to asexual reproduction when all other mating options had been exhausted.
Only two other cases of a shark giving birth without any adult males present have been documented up to this point.

/

It turned out that the slow swimmers had given birth via parthenogenesis. A form of asexual reproduction that is more common in invertebrates like starfish and is also referred to by that name. Although asexual reproduction in sharks is possible, it is exceedingly rare and has typically been attributed to a lack of available males.

Researchers at the Field Museum in Chicago have known for some time that parthenogenesis occurs in animals like sharks, but the reasons for this and the events that set off this process have not been fully understood.
The co-author of a study on the case, which appeared in the Journal of Fish Biology, commented that the finding “throws a wrench in what we thought we knew about how and why parthenogenesis happens,” highlighting an essential aspect of science: we’re continually learning.

This is only the second known instance of a shark giving birth to a fertile offspring without the help of a male, and it is an extremely rare occurrence.

Get notified whenever we post something new!

Continue reading

Hershey’s In US Sued After Study Found Heavy Metals In Its Dark Chocolate

Some of Hershey's products allegedly "contain unsafe levels of lead and cadmium," according to a lawsuit filed in New York. Some of Hershey's chocolate products "contain unsafe levels of lead and cadmium," according to the plaintiffs in a lawsuit filed...

Who is Hero Fiennes Tiffin’s Girlfriend?

The famous heartthrob told Elle Magazine that he has never been in a relationship . "Quite surprisingly, I have never had a genuine relationship. I have never called a woman my girlfriend." After Hero informed Elle that he never has...

Tulsa King Episode 8 -When Is The New Episode Coming Out?

The wait is finally over. Taylor Sheridan's new crime thriller Tulsa King launched on November 13, 2022 on Paramount+ has quickly raced to the top of the ratings. The show's 8.3 rating on IMDb has impressed both fans and...