Home

The Strange and Gruesome Story of the Greenland Shark, the Longest-Living Vertebrate on Earth

Leave a comment

Click the link below the picture

.

Greenland sharks are among nature’s least elegant inventions. Lumpish, with stunted pectoral fins that they use for ponderously slow swimming in cold and dark Arctic waters, they have blunt snouts and gaping mouths that give them an unfortunate, dull-witted appearance. Many live with worm-like parasites that dangle repulsively from their corneas. They belong, appropriately enough, to the family Squalidae, and appear as willing to gorge on fresh halibut as on rotting polar bear carcasses. Once widely hunted for their liver oil, today they are considered bycatch. For some fishermen, a biologist recently told me, netting a Greenland shark is about as welcome as stepping in dog poop.

And yet the species has an undeniable magnetism. It is among the world’s largest predatory sharks, growing up to eighteen feet in length, but also among its most elusive. Its life history is a black box, one that researchers have spent decades trying in vain to peer inside. Where do Greenland sharks mate? What is their global range and population structure? And, most enticing of all, how long do they live? A study begun in the nineteen-thirties suggested that the species’ lifespan might well be extraordinary, based on the slow growth rate of a single shark that a scientist was lucky enough to catch twice. Verifying this, however, proved nearly impossible. To determine age in other sharks, biologists count the growth rings on their fin spines and vertebrae. But Greenland sharks have no hard tissues in their bodies; even their vertebrae are soft. The longevity question seemed unanswerable.

.

Image may contain Animal Fish Shark Sea Life and WaterUsing carbon dating and a new method involving proteins in the lens of the eye, Danish scientists have unraveled the mystery of how long Greenland sharks live. Photograph by WaterFrame / Alamy

.

.

Click the link below for the article:

https://www.newyorker.com/tech/annals-of-technology/the-strange-and-gruesome-story-of-the-greenland-shark-the-longest-living-vertebrate-on-earth?itm_content=footer-recirc

.

__________________________________________

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

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

Autoimmune-ptsd-stress-anxiety-depression-fibromyalgia-ms-wellbeing-natural-sleep..

Autism-spectrum-disorder, posttraumatic stress disorder.. autoimmune.

Thoughts n Feeling’s….

#Poetry #Haiku #Story #love #romance #relationship #everything

LA puissance spirituelle

Toujours pour vous satisfaire des problèmes professionnel,financier santimental ,spirituel

techclanz

technology for innovators

Buds of Wisdom

Fall in Love with Grammar !

The world and its inhabitants

in this site the writer is trying to writing about a big creation of this world

Eliane Mariz

Li - teratura

blog viaungarettidue

18-3-2022 ( testi e fotografie dell'autore)

Ms. C. Loves

If music be the food of love, play on✨

Ominous The Spirit

Learn more about an artist that makes music, paints, and creates photography.

URBN Social

The Social Experience

The Christian Tech-Nerd

-Reviews, Advice & News For All Things Tech and Gadget Related-

Silent Songs of Sonsnow

"I have enough time to rest, but I don't have a minute to waste". Come and catch me with your wise words and we will have some fun with our words of wisdom.

The Spoken word

The Bible/and the constitution of the United States

Opinión y actualidad

LO MEJOR ESTÁ AL CAER (Francisco J. Martín) - Opinión sobre noticias y asuntos de actualidad

たった一つの考動で人生を好転させる

0から∞を生み人生が好循環に回りだす考動力の秘密を伝授

kingsman tailor

#kingsmantailor

Hope237

Hello everyone et bienvenue sur mon blog . Êtes-vous intéressée par ce qui se passe à l'autre bout du monde ? Alors abonnez-vous pour ne rien manquer de cette belle aventure humaine .🥰 Premièrement , j'ai pris l'initiative de créer ce site à caractère humanitaire afin de dénoncer et d'exposer les injustices que subissent les personnes vulnérables dans mon pays le Cameroun 🇨🇲 . L 'objectif étant de créer un jour l'association Hope237 pour soutenir les couches fragiles de la société camerounaise. Deuxièmement , j'aimerais que mes futurs lecteurs découvrent mon pays le Cameroun 🇨🇲 à travers son histoire ,sa géographie ,sa mixité de culture , sa gastronomie , ses paysages et ses lieux touristiques. Qui Sait ? peut être vous avez là votre prochaine destination touristique.😇🌍🌎🌏 ❤️ LGBTQ friendly because love is all we need in this World♥️🏳️‍🌈

Hirnwichsen

Eine Tüte Gemischtes von Sybille Lengauer

PrestaBlogs Updates.

The Home OfPresent And Future Music Stars

هلوسة ذاتية

"أملك من الذكاء ما يكفي لتدمير حياتي بنفسي"

The Khair Media

A Lifestyle Blog In Nigeria | This is where I share my thoughts in a unique way | Read and explore the beautiful world of Khair

Asha Seth

Bookworm. Poet. Story-teller.

PENSER TIMES

Just another WordPress site

Olivia2010kroth's Blog

Viva la Revolución Bolivariana

My feelings

मेरे एहसास

Mousumi Says

Seeing the world as what it is, and more.

Printer Drivers

Download Driver Software

fgsjr2015

My writings of fiction, essay, poetry, observation & commentary

recensioni936.wordpress.com/

E' solo un punto di vista

CAROL's WORLDS

Something for Everyone!

ASSHOLES WATCHING MOVIES

Our opinions don't stink!

JaZzArt en València

Faith saved us from the savages that we were, losing faith makes us savages again

SaphilopeS

ne güzel blues ne güzel karanlık

The Page After

Tutti i libri e i migliori fumetti pubblicati ogni giorno, recensioni settimanali e qualche curiosità.

Quoteliv

"It is better to travel, than to arrive." - Buddha

%d bloggers like this: