Some of these things just look like DNA swimming around…disco ball? Huh?
I used to think what they uncovered in 1909 in the Burgess Shale was out there, but they’re all just super old fossils. These beings are so similar structurally but actually living.
We can actually see life living down there..like pure unadulterated, LIFE. In forms we could only dream of, or contemplate aliens as.
‘Aliens’ already share our space, we just never bothered to look. And they’re not aliens, they’re Earthlings.
I agree with the concept of LIFE.
MUSIC: Dark Angel by Katie Jane Garside
A female O. deletron squid carrying sperm packets—seen as white dots—in 2007. Photograph courtesy MBARI
for National Geographic News
Published September 20, 2011
When it comes to mating, some male squid aren’t very picky: They copulate just as often with other males as with females, a new study says.
That’s because would-be suitors of the hand-size species Octopoteuthis deletron, which live in the murky depths of the eastern Pacific Ocean, can’t easily tell the males from the females, the research shows.
“They can see each other, but they are not able very well to distinguish between the sexes at the distance at which they decide, ‘I’m going to mate’ or ‘I’m not going to mate,’” said study leader Hendrik Hoving, of the Monterey Bay Aquarium Research Institute in California.
So “males mate with basically any member of the same species. … They just take a chance.”
It’s also hard to tell he from she: A female squid’s defining feature is a patch of wrinkled skin.
The result is a strategy that the study authors call “a shot in the dark”—it’s just not worth it to males to make sure their partner is the right gender. (more…)
The species turritopsis nutricula is able to transform itself from its mature state back into a polyp (immature jellyfish) and then back again – picture a gelatinous ‘Benjamin Button’ on repeat.
The species, which is only 4-5 mm in diameter, performs this miraculous feat using a process known as transdifferentiation, in which one type of cell transforms into another. While this sounds a lot like what happens in stem cells, the process is distinct.
Turritopsis nutricula isn’t the only species to use the technique; salamanders use the process to regrow limbs, while chickens utilize it to repair damaged eyes. Turritopsis nutricula, however, is the only species able to regenerate its entire body.
The entire transformation from adult to polyp takes place very rapidly, helping to explain why it has never been observed in the wild. The process, however, has been observed in the lab, and so far 100 per cent of specimens have been capable of the transformation.
Theoretically, the process can go on indefinitely, which may help to explain why scientists have noticed a spike in the number of these jellyfish in the oceans. “We are looking at a worldwide silent invasion,” said Dr Maria Miglietta of the Smithsonian Tropical Marine Institute.
The jellyfish are believed to have originated in the Caribbean, but, due to the common shipping practice of emptying ballast water in foreign ports, is now found all over the globe.
While the jellyfish can potentially live forever, it’s unlikely that one ever will.
That’s because like other jellyfish, Turritopsis nutricula is often eaten by other animals and readily succumbs to disease.
Other larger long-lived species have a better chance at reaching impressive ages. Bowhead whales, tortoises and koi fish can all live to be more than 200 years old. Plant species can live even longer. The oldest known bristlecone pine is nearly 5,000 years old.
That isn’t stopping scientists around the globe from searching for the secret that allows this unique jellyfish from reversing the aging process. Mastering transdifferentiation could be the key to discovering a real fountain of youth.
–Michael Bolen, Yahoo! Canada News, June 17, 2010
Turritopsis nutricula, the potentially immortal jellyfish, is a hydrozoan whose medusa, or jellyfish, form can revert to the polyp stage after becoming sexually mature. It is the only known case of a metazoan capable of reverting completely to a sexually immature, colonial stage after having reached sexual maturity as a solitary stage. It does this through the cell development process of transdifferentiation. Cell transdifferentiation is when the jellyfish “alters the differentiated state of the cell and transforms it into a new cell”. In this process the medusa of the immortal jellyfish is transformed into the polyps of a new polyp colony. First, the umbrella reverts itself and then the tentacles and mesoglea get resorbed. The reverted medusa then attaches itself to the substrate by the end that had been at the opposite end of the umbrella and starts giving rise to new polyps to form the new colony. Theoretically, this process can go on indefinitely, effectively rendering the jellyfish biologically immortal, although in nature, mostTurritopsis, like other medusae, are likely to succumb to predation or disease in the plankton stage, without reverting to the polyp form. No single specimen has been observed for any extended period, so it is not currently possible to estimate the age of an individual, and so even if this species has the potential for immortality, there is no laboratory evidence of many generations surviving from any individual.
The hard to reach “plush toys” on Papua New Guineau have been outfitted with “Crittercams” for the first time. The breathtaking treetop footage is already solving tree kangaroo mysteries, researchers say.
Bacteria stir debate about ‘shadow biosphere’
By Marc Kaufman
Washington Post Staff Writer
Friday, December 3, 2010; 9:12 PM
All life on Earth – from microbes to elephants and us – requires the element phosphorus as one of its six components.
But now researchers have discovered a bacterium that appears to have replaced that life-enabling phosphorus with its toxic cousin arsenic, raising new and provocative questions about the origins and nature of life.
News of the discovery caused a scientific commotion this week, including calls to NASA from the White House asking whether a second line of earthly life has been found. (more…)