Friday, August 14, 2020

All Octopuses Are Venomous

Must Read

The Celebrities Who Are Cleaning Their Own Homes In Lockdown

During the current coronavirus crisis, sales of cleaning products have doubled as we become more stringent about cleaning. It’s not just the everyday public who have been scrubbing their homes though - lockdown has meant that celebrities all over the world have been doing their own cleaning. Nicole Sherzinger posted pictures of herself mopping the floor, Victoria Beckham has become obsessed with the dishwasher, and even Joan Collins appeared in Hello! polishing the windows. This may not have been out of choice, but we do appreciate seeing them on social media, sharing their cleaning struggles.

Green Your Ride: Should You Buy An Electric Vehicle?

Photo by Andrew Roberts on Unsplash By Lucy Yardley If...

Celebrities Utilizing Psychics In All Aspects Of Their Lives

22% of Americans have consulted a psychic or medium, according to You Gov. While they might not be overly popular with the general public, there’s one group of individuals that turn to psychics in their droves: celebrities. George Clooney, Khloe Kardashian, Brad Pitt and Jenny McCarthy are just a few famous faces who have confessed to seeing a psychic. But just how do celebrities benefit from psychics in a way that others don’t?

All Octopuses Are Venomous
All Octopuses Are Venomous

Antarctic octopus (Paraledone turqueti). Credit: E. Jorgensen, NOAA 2007
Contrary to what was known, all octopuses are venomous, a new study finds.

Researchers knew that the blue-ringed octopus packed venom. Now they say all octopuses and cuttlefish, and some squid are venomous. In fact they all share a common, ancient venomous ancestor, the study indicates, and the work suggests new avenues for drug discovery.

While the blue-ringed octopus species remain the only group that are dangerous to humans, the other species have been quietly using their venom for predation, such as paralyzing a clam into opening its shell.

“Venoms are toxic proteins with specialized functions such as paralyzing the nervous system” said Bryan Fry of the University of Melbourne. “We hope that by understanding the structure and mode of action of venom proteins we can benefit drug design for a range of conditions such as pain management, allergies and cancer.”

While many creatures have been examined as a basis for drug development, cephalopods (octopuses, cuttlefish and squid) remain an untapped resource and their venom may represent a unique class of compounds.

Fry obtained tissue samples from cephalopods ranging from Hong Kong, the Coral Sea, the Great Barrier Reef and Antarctica. The team — scientists from the University of Brussels and Museum Victoria — then analyzed the genes for venom production from the different species and found that a venomous ancestor produced one set of venom proteins, but over time additional proteins were added to the chemical arsenal.

The origin of these genes also sheds light on the fundamentals of evolution, presenting a prime example of convergent evolution where species independently develop similar traits.

The team will now work on understanding why very different types of venomous animals seem to consistently settle on the similar venom protein composition, and which physical or chemical properties make them predisposed to be useful as toxin.

“Not only will this allow us to understand how these animals have assembled their arsenals, but it will also allow us to better exploit them in the development of new drugs from venoms,” Fry said. “It does not seem a coincidence that some of the same protein types have been recruited for use as toxins across the animal kingdom.”

The study was published in the Journal of Molecular Evolution

- Advertisement -

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

- Advertisement -

Latest News

The Celebrities Who Are Cleaning Their Own Homes In Lockdown

During the current coronavirus crisis, sales of cleaning products have doubled as we become more stringent about cleaning. It’s not just the everyday public who have been scrubbing their homes though - lockdown has meant that celebrities all over the world have been doing their own cleaning. Nicole Sherzinger posted pictures of herself mopping the floor, Victoria Beckham has become obsessed with the dishwasher, and even Joan Collins appeared in Hello! polishing the windows. This may not have been out of choice, but we do appreciate seeing them on social media, sharing their cleaning struggles.

Green Your Ride: Should You Buy An Electric Vehicle?

Photo by Andrew Roberts on Unsplash By Lucy Yardley If you worry about the effect of...

Celebrities Utilizing Psychics In All Aspects Of Their Lives

22% of Americans have consulted a psychic or medium, according to You Gov. While they might not be overly popular with the general public, there’s one group of individuals that turn to psychics in their droves: celebrities. George Clooney, Khloe Kardashian, Brad Pitt and Jenny McCarthy are just a few famous faces who have confessed to seeing a psychic. But just how do celebrities benefit from psychics in a way that others don’t?

Meditation vs Panic Attacks: Guess Which One Wins?

Photo by Mitchell Griest on Unsplash By Lucy Yardley Anxiety and depression are officially...

A train journey and two names to remember

A train journey and two names to remember By Leena Sarma Of two co-travellers...
- Advertisement -

More Articles Like This

- Advertisement -