dohrnii

the types as | animal facts

ESFJ // sea otters hold hands while they’re sleeping so they don’t drift apart.

ISFJ // trained pigeons can tell the difference between the paintings of pablo picasso and claude monet. 

ESTJ // the peacock mantis shrimp can throw a punch at 50mph, accelerating quicker than a .22-caliber bullet. 

ISTJ // in an aquatic traffic jam, alligators will give manatees the right of way.

ESFP // sweden has a rabbit show-jumping competition called kaninhoppning.

ISFP // a study measuring the effects of music found that cows produce more milk when listening to R.E.M’s “everybody hurts.”

ESTP // a pig’s orgasm can last up to thirty minutes.

ISTP // ducks like to surf. they have been observed riding tides and swimming back to ride them again.

ENFJ // bottlenose dolphins address one another with self-given names, adding slight variations that let them identify who’s speaking.

INFJ // cats headbutt humans to mark them as safe and trustworthy.

ENFP // qquirrels plant thousands of new trees each year simply by forgetting where they put their acorns.

INFP // sea otters have a pouch under their forearm to store food and their favorite rocks.

ENTJ // norway knighted a penguin called nils olav. sir nils olav.

INTJ // the turritopsis dohrnii is a jellyfish that is biologically immortal, unless it succumbs to disease or predation.

ENTP // nature writer candace savage has observed that crows are so intelligent they can play pranks on each other.

INTP // octopuses, squid and jellyfish can alter their own genes through a process called RNA editing.

anonymous asked:

can you give me quick facts about jellyfish, please? they're my favorite!

Sure!

Jelly fish are in the family cnidaria. They have stinging cells called nematocysts. Jellyfish are considered plankton becasue they can not swim against a current and are forced to drift along. 

One species is also potentially immortal (Turritopsis dohrnii) with the ability to age backwards and forwards again. However, this is only done in emergencies such as starvation or physical damage. Read more about it here

Hope you enjoy those quick facts!

2

There is a small jellyfish called the Turritopsis dohrnii, or immortal jellyfish that lives in the Mediterranean Sea and the aters of Japan. It is the only known case of an animal capable of reverting completely to a sexually immature, colonial stage after having reached sexual maturity as a solitary stage.

The medusa of Turritopsis dohrnii is the only form known to have developed the ability to return to a polyp state, by a specific transformation process that requires the presence of certain cell types (tissue from both the jellyfish bell surface and the circulatory canal system). Careful laboratory experiments have revealed that all stages of the medusae, from newly released to fully mature individuals, can transform back into polyps.

Theoretically, this process can go on indefinitely, effectively rendering the jellyfish biologically immortal, although, in nature, most Turritopsis are likely to succumb to predation or disease in the medusa stage, without reverting to the polyp form.

i try to inject some science into amc’s preacher

yes, you heard it here folks… i’m gonna try and use my 3+ yrs of undergrad education to explain vampirism/cassidy’s immortality bc why not: 

i’m gonna do a very lazy series of bullet points bc that’s as much as my brain will allow today. but if you have any questions for things i glossed over, just reply or hmu via IM! 

  • cassidy’s got extra totipotent stem cells ( can become ANY cell including placental cells ) stored up somewhere in his body–probably activated via some complex signaling mech./signal induction that definitely does not exist irl. 
  • the process of human –> vampire i guess is similar to a virus infecting a host?? in that the virus invades a host cell, gets it to make multiple replications of itself by injecting its own DNA or RNA into the host cell (instructing mRNA / messenger RNA if it is an RNA virus to replicate the virus OR w/ neg. stranded DNA/RNA, virus is produced via transcription –> translation )
  • on a side note, this is not the same as the rather famous Turritopsis dohrnii / immortal jellyfish bc they’re immortal thru transdifferentiation and i’m not about to go and try to explain this in detail except that basically, they force their mature somatic cells ( any cell that’s not a reproductive cell ) to turn into different types of cells w/o an intermediate pluripotent cell stage ( can become any cell BUT placental cells ) so cool but also weird and confusing af 
  • ramblings aside, this explains his healing abilities–like salamanders/lizards, when tissue or cells are damaged, a signal is sent out and stem cells rush to the point of injury. this is known as complete regeneration. we humans, for the most part, only have incomplete regeneration, though the liver’s quite good at regen ( hence why ppl can donate like half their liver and still be A okay )
  • for whatever reason, this “regen” signal cascade is fueled by blood in vamps. idk, still tryna figure this one out scientifically but it is what it is *insert shrug emoji here* i’m not even gonna try and wiggle a “real” answer to this so feel free to add on here if you wanna!!
  • as for his immortality, this would be most likely due to his telomeres (the ends/”caps” of chromosomes that protect DNA from damage). in regular ppl, senescence/biological aging occurs bc our chromosomes become too short to divide– a result of our telomeres shortening. 
  • however, there is a reverse transcript enzyme known as telomerase that, as you might expect from the name, is able to replace telomeres. stem cells exhibit high levels of telomerase– which feeds back into what i explained above! bc cassidy has these extra amounts of stem cells, they no doubt help him in his whole non-aging process. unfortunately, telomerase is also present in cancer/tumor cells… so it’s not all good things and, if left unchecked, can cause excessive + abnormal cell growth but this is a fictional universe and everything works perfectly so cassidy is basically indestructible 
  • in regards to sunlight, perhaps the rays mess up the whole process? both the aging and regeneration? idk guys, there isn’t much science in why UV light would make a person burst into flames otherwise other than spontaneous combustion but that’s not exactly scientific. my best guess is that UV light/radiation disrupts these mechanisms and causes rapid necrosis ( due to injury from the sunlight ) as well as rapid apoptosis ( programmed cell death ). 

One of my recent projects involved illustrating the Lifecycle of Turritopsis dohrnii, commonly known as The Immortal Jellyfish It is the only known species of an animal capable of reverting completely back to polyp stage making it seem biologically immortal. Is it really though?

It’s one thing to survive in harsh environments, but quite another to hit the reset button when faced with an imminent threat. Only one animal is known to have this remarkable ability: a small species of jellyfish, Turritopsis dohrnii, first discovered in the 1880s in the Mediterranean Sea and highlighted as a uniquely enduring organism in the exhibition Life at the Limits: Stories of Amazing Species.

Like all jellyfish, Turritopsis dohrnii begins life as a larva, called a planula, which develops from a fertilized egg. A planula swims at first, then settles on the sea floor and grows into a cylindrical colony of polyps. These ultimately spawn free-swimming, genetically identical medusae—the animals we recognize as jellyfish—which grow to adulthood in a matter of weeks.

Fully grown, Turritopsis dohrnii is only about 4.5 mm (0.18 inches) across, smaller than a pinky nail. A bright-red stomach is visible in the middle of its transparent bell, and the edges are lined with up to 90 white tentacles. These tiny, transparent creatures have an extraordinary survival skill, though. In response to physical damage or even starvation, they take a leap back in their development process, transforming back into a polyp. In a process that looks remarkably like immortality, the born-again polyp colony eventually buds and releases medusae that are genetically identical to the injured adult.  In fact, since this phenomenon was first observed in the 1990s, the species has come to be called “the immortal jellyfish.”

Learn more about the cellular process behind this ability

Image: © Takashi Murai/The New York Times Syndicate/Redux

Animales con SUPERPODERES DE VERDAD

Los 3 posibles fundadores de “Los Vengadores” en el reino animal:

1. Odontodactylus scyllarus - la gamba con visión hiperespectral y polarizada, y con Mjolnir en las manos para pegar puñetazos a 80 Km/h bajo el mar:

2. Turritopsis dohrnii - la medusa inmortal:

3. Elysia Chlorotica - la babosa que hace la fotosíntesis:

Enviado por anynomous:

Para que le cuentes cuentos sobre estas abominaciones a tu futuro hijo.

Turritopsis dohrnii, also known as the immortal jellyfish, is a species of small jellyfish found in the Mediterranean and in the waters off Japan.

It is unique in that it exhibits a certain form of “immortality”: it is the only known case of an animal capable of reverting completely to a sexually immature, colonial stage after having reached sexual maturity as a solitary stage.

If a T. dohrnii jellyfish is exposed to environmental stress or physical assault, or is sick or old, it can revert to the polyp stage, forming a new polyp colony. It does this through the cell development process of transdifferentiation, which alters the differentiated state of the cells and transforms them into new types of cells.

Theoretically, this process can go on indefinitely, effectively rendering the jellyfish biologically immortal.